Which of the following situations is impossible?
A) An object has velocity directed east and acceleration directed west.
B) An object has constant non-zero velocity and changing acceleration.
C) An object has velocity directed east and acceleration directed east.
D) An object has zero velocity but non-zero acceleration.
E) An object has constant non-zero acceleration and changing velocity.

Question

Quizplus · Accepted Answer

An object with a constant non-zero velocity must have zero acceleration, as acceleration is the rate of change of velocity. If the velocity is constant, it is not changing, so acceleration cannot be changing; it must be zero.

Which of the Following Situations Is Impossible