SAT II Physics : Motion in One Dimension

Study concepts, example questions & explanations for SAT II Physics

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Example Questions

Example Question #1 : Sat Subject Test In Physics

Near the surface of the earth, a projectile is fired from a canon at an angle of  degrees above the horizon and an initial velocity of  meters per second. Which of the following expressions gives the time it takes the projectile to reach its maximum height?

Possible Answers:

Correct answer:

Explanation:

At the maximum height of projectile motion,   and because this takes place near the surface of the earth we know  which we can plug into the equation:

 

We can then rearrange for 

Next substitute this value into the equation   to get the correct answer

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