Suppose you are driving your car down the highway at constant velocity. Which of the following are true?
A) The car's momentum is constant but not its kinetic energy.
B) The car's kinetic energy is constant but not its momentum.
C) Both the car's kinetic energy and momentum are constant.
D) Neither the car's kinetic energy nor momentum are constant.

Question

Quizplus · Accepted Answer

Since the car is moving at a constant velocity, both its momentum (which depends on mass and velocity) and kinetic energy (which depends on mass and the square of velocity) remain constant.

Suppose You Are Driving Your Car Down the Highway at Constant