SAT Subject Physics Practice Question 155: Answer and Explanation

Next steps

Question: 155

1. For an object traveling in a straight line, its velocity (v, in m/s) as a function of time (t, in s) is given by the following graph.

Which graph best depicts the object’s momentum?

A.
B.
C.
D.
E.

Correct Answer: A

Explanation:

Momentum is mass times velocity. Since the mass of the object is just a positive constant, the graph of momentum should have the same shape as the graph of the velocity.

Previous       Next