A vehicle is traveling in the +x direction to x = 100 m. It then reverses direction. At the instant when it changes direction, the velocity of the vehicle is
A) positive.
B) negative.
C) zero.
D) positive then negative.
E) negative then positive.

Question

Quizplus · Accepted Answer

At the instant a vehicle changes direction, its velocity is zero because it momentarily stops before reversing direction.

A Vehicle Is Traveling in the +X Direction to X