Calculus 1 : How to find position

Study concepts, example questions & explanations for Calculus 1

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Example Questions

Example Question #975 : Spatial Calculus

The velocity function of a particle and a position of this particle at a known time are given by \(\displaystyle v(t)=sin(t^2)\) \(\displaystyle p(0)=4\). approximate \(\displaystyle p(0.6)\) using Euler's Method and three steps.

Possible Answers:

\(\displaystyle 4.032\)

\(\displaystyle 4.016\)

\(\displaystyle 4.008\)

\(\displaystyle 4.024\)

\(\displaystyle 4.040\)

Correct answer:

\(\displaystyle 4.040\)

Explanation:

The general form of Euler's method, when a derivative function, initial value, and step size are known, is:

\(\displaystyle y_n=y_{n+1} +\Delta x f'(x_n,y_n)\)

In the case of this problem, this can be rewritten as:

\(\displaystyle p(t_n)=p(t_{n+1}) +\Delta t v(t_n)\)

To calculate the step size find the difference between the final and initial value of \(\displaystyle t\) and divide by the number of steps to be used:

\(\displaystyle \Delta t = \frac{t_f-t_i}{Steps}\)

For this problem, we are told \(\displaystyle v(t)=sin(t^2)\) \(\displaystyle p(0)=4\)

Knowing this, we may take the steps to estimate our function value at our desired \(\displaystyle t\) value:

\(\displaystyle \Delta t = \frac{0.6-0}{3}=0.2\)

\(\displaystyle p_0=4;t_0=0\)

\(\displaystyle p_1=4+(0.2)sin(0^2)=4\)

\(\displaystyle p_2=4+(0.2)sin(0.2^2)=4.008\)

\(\displaystyle p_3=4.008+(0.2)sin(0.4^2)=4.040\)

Example Question #976 : Spatial Calculus

The velocity function of a particle and a position of this particle at a known time are given by \(\displaystyle v(t)=csc^2(t)\) \(\displaystyle p(2)=5\). approximate \(\displaystyle p(2.3)\) using Euler's Method and three steps.

Possible Answers:

\(\displaystyle 5.849\)

\(\displaystyle 5.153\)

\(\displaystyle 5.666\)

\(\displaystyle 6.013\)

\(\displaystyle 5.408\)

Correct answer:

\(\displaystyle 5.408\)

Explanation:

The general form of Euler's method, when a derivative function, initial value, and step size are known, is:

\(\displaystyle y_n=y_{n+1} +\Delta x f'(x_n,y_n)\)

In the case of this problem, this can be rewritten as:

\(\displaystyle p(t_n)=p(t_{n+1}) +\Delta t v(t_n)\)

To calculate the step size find the difference between the final and initial value of \(\displaystyle t\) and divide by the number of steps to be used:

\(\displaystyle \Delta t = \frac{t_f-t_i}{Steps}\)

For this problem, we are told \(\displaystyle v(t)=csc^2(t)\) \(\displaystyle p(2)=5\)

Knowing this, we may take the steps to estimate our function value at our desired \(\displaystyle t\) value:

\(\displaystyle \Delta t = \frac{2.3-2}{3}=0.1\)

\(\displaystyle p_0=5;t_0=2\)

\(\displaystyle p_1=5+(0.1)csc^2(2)=5.121\)

\(\displaystyle p_2=5.121+(0.1)csc^2(2.1)=5.255\)

\(\displaystyle p_3=5.255+(0.1)csc^2(2.2)=5.408\)

Example Question #977 : Spatial Calculus

The velocity function of a particle and a position of this particle at a known time are given by \(\displaystyle v(t)=e^{2^t}\) \(\displaystyle p(0.5)=3\). approximate \(\displaystyle p(1.1)\) using Euler's Method and three steps.

Possible Answers:

\(\displaystyle 6.131\)

\(\displaystyle 5.933\)

\(\displaystyle 6.410\)

\(\displaystyle 6.912\)

\(\displaystyle 7.885\)

Correct answer:

\(\displaystyle 6.131\)

Explanation:

The general form of Euler's method, when a derivative function, initial value, and step size are known, is:

\(\displaystyle y_n=y_{n+1} +\Delta x f'(x_n,y_n)\)

In the case of this problem, this can be rewritten as:

\(\displaystyle p(t_n)=p(t_{n+1}) +\Delta t v(t_n)\)

To calculate the step size find the difference between the final and initial value of \(\displaystyle t\) and divide by the number of steps to be used:

\(\displaystyle \Delta t = \frac{t_f-t_i}{Steps}\)

For this problem, we are told \(\displaystyle v(t)=e^{2^t}\) \(\displaystyle p(0.5)=3\)

Knowing this, we may take the steps to estimate our function value at our desired \(\displaystyle t\) value:

\(\displaystyle \Delta t = \frac{1.1-0.5}{3}=0.2\)

\(\displaystyle p_0=3;t_0=0.5\)

\(\displaystyle p_1=3+(0.2)e^{2^{0.5}}=3.823\)

\(\displaystyle p_2=3.823+(0.2)e^{2^{0.7}}=4.838\)

\(\displaystyle p_3=4.838+(0.2)e^{2^{0.9}}=6.131\)

Example Question #978 : Spatial Calculus

The velocity function of a particle and a position of this particle at a known time are given by \(\displaystyle v(t)=tan^3(t^2)\) \(\displaystyle p(1)=0\). approximate \(\displaystyle p(1.3)\) using Euler's Method and three steps.

Possible Answers:

\(\displaystyle 2.240\)

\(\displaystyle 46.169\)

\(\displaystyle 33.552\)

\(\displaystyle 0.378\)

\(\displaystyle 37.208\)

Correct answer:

\(\displaystyle 46.169\)

Explanation:

The general form of Euler's method, when a derivative function, initial value, and step size are known, is:

\(\displaystyle y_n=y_{n+1} +\Delta x f'(x_n,y_n)\)

In the case of this problem, this can be rewritten as:

\(\displaystyle p(t_n)=p(t_{n+1}) +\Delta t v(t_n)\)

To calculate the step size find the difference between the final and initial value of \(\displaystyle t\) and divide by the number of steps to be used:

\(\displaystyle \Delta t = \frac{t_f-t_i}{Steps}\)

For this problem, we are told \(\displaystyle v(t)=tan^3(t^2)\) \(\displaystyle p(1)=0\)

Knowing this, we may take the steps to estimate our function value at our desired \(\displaystyle t\) value:

\(\displaystyle \Delta t = \frac{1.3-1}{3}=0.1\)

\(\displaystyle p_0=0;t_0=1\)

\(\displaystyle p_1=0+(0.1)tan^3(1^2)=0.378\)

\(\displaystyle p_2=0.378+(0.1)tan^3(1.1^2)=2.240\)

\(\displaystyle p_3=2.240+(0.1)tan^3(1.2^2)=46.169\)

Example Question #979 : Spatial Calculus

The velocity function of a particle and a position of this particle at a known time are given by \(\displaystyle v(t)=cos(t^2+t+1)\) \(\displaystyle p(0)=2\). approximate \(\displaystyle p(3)\) using Euler's Method and three steps.

Possible Answers:

\(\displaystyle 1.550\)

\(\displaystyle 2.540\)

\(\displaystyle 2.199\)

\(\displaystyle 1.765\)

\(\displaystyle 2.304\)

Correct answer:

\(\displaystyle 2.304\)

Explanation:

The general form of Euler's method, when a derivative function, initial value, and step size are known, is:

\(\displaystyle y_n=y_{n+1} +\Delta x f'(x_n,y_n)\)

In the case of this problem, this can be rewritten as:

\(\displaystyle p(t_n)=p(t_{n+1}) +\Delta t v(t_n)\)

To calculate the step size find the difference between the final and initial value of \(\displaystyle t\) and divide by the number of steps to be used:

\(\displaystyle \Delta t = \frac{t_f-t_i}{Steps}\)

For this problem, we are told \(\displaystyle v(t)=cos(t^2+t+1)\) \(\displaystyle p(0)=2\)

Knowing this, we may take the steps to estimate our function value at our desired \(\displaystyle t\) value:

\(\displaystyle \Delta t = \frac{3-0}{3}=1\)

\(\displaystyle p_0=2;t_0=0\)

\(\displaystyle p_1=2+(1)cos(0^2+0+1)=2.540\)

\(\displaystyle p_2=2.540+(1)cos(1^2+1+1)=1.550\)

\(\displaystyle p_3=1.550+(1)cos(2^2+2+1)=2.304\)

Example Question #980 : Spatial Calculus

The velocity function of a particle and a position of this particle at a known time are given by \(\displaystyle v(t)=(tan(t))^{t}\) \(\displaystyle p(0.7)=0\). approximate \(\displaystyle p(1.9)\) using Euler's Method and three steps.

Possible Answers:

\(\displaystyle 27.608\)

\(\displaystyle 5.927\)

\(\displaystyle 1.196\)

\(\displaystyle 22.377\)

\(\displaystyle 15.332\)

Correct answer:

\(\displaystyle 22.377\)

Explanation:

The general form of Euler's method, when a derivative function, initial value, and step size are known, is:

\(\displaystyle y_n=y_{n+1} +\Delta x f'(x_n,y_n)\)

In the case of this problem, this can be rewritten as:

\(\displaystyle p(t_n)=p(t_{n+1}) +\Delta t v(t_n)\)

To calculate the step size find the difference between the final and initial value of \(\displaystyle t\) and divide by the number of steps to be used:

\(\displaystyle \Delta t = \frac{t_f-t_i}{Steps}\)

For this problem, we are told \(\displaystyle v(t)=(tan(t))^{t}\) \(\displaystyle p(0.7)=0\)

Knowing this, we may take the steps to estimate our function value at our desired \(\displaystyle t\) value:

\(\displaystyle \Delta t = \frac{1.9-0.7}{3}=0.4\)

\(\displaystyle p_0=0;t_0=0.7\)

\(\displaystyle p_1=0+(0.4)(tan(0.7))^{0.7}=0.355\)

\(\displaystyle p_2=0.355+(0.4)(tan(1.1))^{1.1}=1.196\)

\(\displaystyle p_3=1.196+(0.4)(tan(1.5))^{1.5}=22.377\)

Example Question #121 : How To Find Position

The velocity function of a particle and a position of this particle at a known time are given by \(\displaystyle v(t)=4sin^3(t)\) \(\displaystyle p(2)=2\). approximate \(\displaystyle p(5)\) using Euler's Method and three steps.

Possible Answers:

\(\displaystyle 2.797\)

\(\displaystyle 1.046\)

\(\displaystyle 3.761\)

\(\displaystyle 3.284\)

\(\displaystyle 5.044\)

Correct answer:

\(\displaystyle 3.284\)

Explanation:

The general form of Euler's method, when a derivative function, initial value, and step size are known, is:

\(\displaystyle y_n=y_{n+1} +\Delta x f'(x_n,y_n)\)

In the case of this problem, this can be rewritten as:

\(\displaystyle p(t_n)=p(t_{n+1}) +\Delta t v(t_n)\)

To calculate the step size find the difference between the final and initial value of \(\displaystyle t\) and divide by the number of steps to be used:

\(\displaystyle \Delta t = \frac{t_f-t_i}{Steps}\)

For this problem, we are told \(\displaystyle v(t)=4sin^3(t)\) \(\displaystyle p(2)=2\)

Knowing this, we may take the steps to estimate our function value at our desired \(\displaystyle t\) value:

\(\displaystyle \Delta t = \frac{5-2}{3}=1\)

\(\displaystyle p_0=2;t_0=2\)

\(\displaystyle p_1=2+(1)4sin^3(2)=5.007\)

\(\displaystyle p_2=5.007+(1)4sin^3(3)=5.018\)

\(\displaystyle p_3=5.018+(1)4sin^3(4)=3.284\)

Example Question #122 : How To Find Position

The velocity function of a particle and a position of this particle at a known time are given by \(\displaystyle v(t)=4e^{t^2}\) \(\displaystyle p(0)=5\). approximate \(\displaystyle p(0.9)\) using Euler's Method and three steps.

Possible Answers:

\(\displaystyle 32.916\)

\(\displaystyle 9.233\)

\(\displaystyle 14.008\)

\(\displaystyle 7.513\)

\(\displaystyle 6.200\)

Correct answer:

\(\displaystyle 9.233\)

Explanation:

The general form of Euler's method, when a derivative function, initial value, and step size are known, is:

\(\displaystyle y_n=y_{n+1} +\Delta x f'(x_n,y_n)\)

In the case of this problem, this can be rewritten as:

\(\displaystyle p(t_n)=p(t_{n+1}) +\Delta t v(t_n)\)

To calculate the step size find the difference between the final and initial value of \(\displaystyle t\) and divide by the number of steps to be used:

\(\displaystyle \Delta t = \frac{t_f-t_i}{Steps}\)

For this problem, we are told \(\displaystyle v(t)=4e^{t^2}\) \(\displaystyle p(0)=5\)

Knowing this, we may take the steps to estimate our function value at our desired \(\displaystyle t\) value:

\(\displaystyle \Delta t = \frac{0.9-0}{3}=0.3\)

\(\displaystyle p_0=5;t_0=0\)

\(\displaystyle p_1=5+(0.3)4e^{0^2}=6.2\)

\(\displaystyle p_2=6.2+(0.3)4e^{0.3^2}=7.513\)

\(\displaystyle p_3=7.513+(0.3)4e^{0.6^2}=9.233\)

Example Question #123 : How To Find Position

The velocity function of a particle and a position of this particle at a known time are given by \(\displaystyle v(t)=sec^3({\pi t})\) \(\displaystyle p(1)=4\). approximate \(\displaystyle p(1.27)\) using Euler's Method and three steps.

Possible Answers:

\(\displaystyle 3.658\)

\(\displaystyle 4.395\)

\(\displaystyle 3.910\)

\(\displaystyle 3.808\)

\(\displaystyle 4.111\)

Correct answer:

\(\displaystyle 3.658\)

Explanation:

The general form of Euler's method, when a derivative function, initial value, and step size are known, is:

\(\displaystyle y_n=y_{n+1} +\Delta x f'(x_n,y_n)\)

In the case of this problem, this can be rewritten as:

\(\displaystyle p(t_n)=p(t_{n+1}) +\Delta t v(t_n)\)

To calculate the step size find the difference between the final and initial value of \(\displaystyle t\) and divide by the number of steps to be used:

\(\displaystyle \Delta t = \frac{t_f-t_i}{Steps}\)

For this problem, we are told \(\displaystyle v(t)=sec^3({\pi t})\) \(\displaystyle p(1)=4\)

Knowing this, we may take the steps to estimate our function value at our desired \(\displaystyle t\) value:

\(\displaystyle \Delta t = \frac{1.27-1}{3}=0.09\)

\(\displaystyle p_0=4;t_0=1\)

\(\displaystyle p_1=4+(0.09)sec^3({\pi (1)})=3.91\)

\(\displaystyle p_2=3.91+(0.09)sec^3({\pi (1.09)})=3.808\)

\(\displaystyle p_3=3.808+(0.09)sec^3({\pi (1.18)})=3.658\)

Example Question #124 : How To Find Position

The velocity function of a particle and a position of this particle at a known time are given by \(\displaystyle v(t)=\frac{4}{tan(t)}\) \(\displaystyle p(1)=1\). approximate \(\displaystyle p(7)\) using Euler's Method and three steps.

Possible Answers:

\(\displaystyle -52.352\)

\(\displaystyle -9.403\)

\(\displaystyle -49.985\)

\(\displaystyle -27.818\)

\(\displaystyle 6.137\)

Correct answer:

\(\displaystyle -52.352\)

Explanation:

The general form of Euler's method, when a derivative function, initial value, and step size are known, is:

\(\displaystyle y_n=y_{n+1} +\Delta x f'(x_n,y_n)\)

In the case of this problem, this can be rewritten as:

\(\displaystyle p(t_n)=p(t_{n+1}) +\Delta t v(t_n)\)

To calculate the step size find the difference between the final and initial value of \(\displaystyle t\) and divide by the number of steps to be used:

\(\displaystyle \Delta t = \frac{t_f-t_i}{Steps}\)

For this problem, we are told \(\displaystyle v(t)=\frac{4}{tan(t)}\) \(\displaystyle p(1)=1\)

Knowing this, we may take the steps to estimate our function value at our desired \(\displaystyle t\) value:

\(\displaystyle \Delta t = \frac{7-1}{3}=2\)

\(\displaystyle p_0=1;t_0=1\)

\(\displaystyle p_1=1+(2)\frac{4}{tan(1)}=6.137\)

\(\displaystyle p_2=6.137+(2)\frac{4}{tan(3)}=-49.985\)

\(\displaystyle p_3=-49.985+(2)\frac{4}{tan(5)}=-52.352\)

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