Calculus 2 : Integrals

Study concepts, example questions & explanations for Calculus 2

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Example Questions

Example Question #15 : Integral Applications

A ball has a velocity defined by , where we express  in seconds. What distance does it travel between  in meters?

Possible Answers:

None of the above

Correct answer:

Explanation:

We define velocity as the derivative of distance, or .

Thus, in order to find the distance traveled when given the velocity, we'll need to take the definite integral of the velocity function over a specified time period, or .

Since 

, we can use the Power Rule for Integrals

 for all ,

to find:

Example Question #11 : Applications In Physics

A subway has a velocity defined by , where we express  in seconds. What distance does it travel between  in meters?

Possible Answers:

Correct answer:

Explanation:

We define velocity as the derivative of distance, or .

Thus, in order to find the distance traveled when given the velocity, we'll need to take the definite integral of the velocity function over a specified time period, or .

Since 

,

we can use the Power Rule for Integrals

 for all ,

to find:

Example Question #17 : Integral Applications

A train goes a certain distance between  (where  is time in seconds). If we know that the train's velocity is defined as , what is the distance it travelled (in meters)?

Possible Answers:

Correct answer:

Explanation:

We define velocity as the derivative of distance, or .

Thus, in order to find the distance traveled when given the velocity, we'll need to take the definite integral of the velocity function over a specified time period, or .

Since , we can use the Power Rule for Integrals

for all ,

to find:

 

 

Example Question #18 : Integral Applications

A car goes a certain distance between  (where  is time in seconds). If we know that the car's velocity is defined as , what is the distance it travelled (in meters)?

Possible Answers:

Correct answer:

Explanation:

We define velocity as the derivative of distance, or .

Thus, in order to find the distance traveled when given the velocity, we'll need to take the definite integral of the velocity function over a specified time period, or .

Since , we can use the Power Rule for Integrals

 for all ,

to find:

 

 

Example Question #11 : Integral Applications

A plane goes a certain distance between  (where  is time in seconds). If we know that the plane's velocity is defined as , what is the distance it travelled (in meters)?

Possible Answers:

Correct answer:

Explanation:

We define velocity as the derivative of distance, or .

Thus, in order to find the distance traveled when given the velocity, we'll need to take the definite integral of the velocity function over a specified time period, or .

Since , we can use the Power Rule for Integrals

 for all ,

to find:

 

Example Question #21 : Applications In Physics

The velocity of a ship is defined as  (where time  is measured in seconds). What distance (in meters) does the ship travel between  seconds and  seconds?

Possible Answers:

Correct answer:

Explanation:

We define velocity as the derivative of distance, or .

Thus, in order to find the distance traveled when given the velocity, we'll need to take the definite integral of the velocity function over a specified time period, or .

Since , we can use the Power Rule for Integrals

for all ,

to find:

Since the definite integral at  is , we get:

 

 

Example Question #22 : Applications In Physics

The velocity of a car is defined as  (where time  is measured in seconds). What distance (in meters) does the car travel between  seconds and  seconds?

Possible Answers:

Correct answer:

Explanation:

We define velocity as the derivative of distance, or .

Thus, in order to find the distance traveled when given the velocity, we'll need to take the definite integral of the velocity function over a specified time period, or .

Since , we can use the Power Rule for Integrals

 for all ,

to find:

Since the definite integral at  is , we get:

Example Question #191 : Integrals

The velocity of a rocket is defined as  (where time  is measured in seconds). What distance (in meters) does the rocket travel between  second and  seconds?

Possible Answers:

Correct answer:

Explanation:

We define velocity as the derivative of distance, or .

Thus, in order to find the distance traveled when given the velocity, we'll need to take the definite integral of the velocity function over a specified time period, or .

Since , we can use the Power Rule for Integrals

 for all ,

to find:

Example Question #24 : Applications In Physics

A dog travels a certain distance between  seconds and  seconds. If we define its velocity as , what is that distance in meters?

Possible Answers:

Correct answer:

Explanation:

We define velocity as the derivative of distance, or .

Thus, in order to find the distance traveled when given the velocity, we'll need to take the definite integral of the velocity function over a specified time period, or .

Since , we can use the Power Rule for Integrals

 for all ,

to find:

Example Question #25 : Applications In Physics

A skateboarder travels a certain distance between  seconds and  seconds. If we define her velocity as , what is her distance in meters?

Possible Answers:

Correct answer:

Explanation:

We define velocity as the derivative of distance, or .

Thus, in order to find the distance traveled when given the velocity, we'll need to take the definite integral of the velocity function over a specified time period, or .

Since , we can use the Power Rule for Integrals

 for all ,

to find:

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