A ball rests in the middle of a cart.When you quickly jerk the cart forward,the ball
A)hits the front of the cart.
B)hits the back of the cart.
C)remains in the middle of the cart.
D)all,depending on how quickly the cart is pulled

Question

Quizplus · Accepted Answer

When the cart is quickly jerked forward, the ball tends to remain in its state of rest due to inertia. Since the cart moves forward and the ball does not immediately match this movement, it appears to move backward relative to the cart, thus hitting the back of the cart.

A Ball Rests in the Middle of a Cart