Kendra loves rolling down hills. She finds a steep hill to roll down. As she is rolling, when is her kinetic energy most likely the highest?

Question

at the bottom of the hill just as she has stopped rolling

just after the top of the hill right as she starts rolling down the hill

at the top of the hill right before she has started rolling down the hill

at the bottom of the hill right before she stops rolling

Answer 1

The correct answer is at the bottom of the hill just as she has stopped rolling. At this point, all of her potential energy from being at the top of the hill has been converted to kinetic energy as she rolls down the hill. As she reaches the bottom and comes to a stop, her kinetic energy is at its highest.

Answer 2

Two cars in motion have equal mass. Which car has more kinetic energy? (1 point)
Responses

the car with the greatest size
the car with the greatest size

the car with the greatest volume
the car with the greatest volume

the car with the greatest acceleration
the car with the greatest acceleration

the car with the greatest speed