Kendra laws rolling downhill. She finds a steep hill to roll down as she is rolling. When is her kinetic energy, most likely the highest

A At the bottom of the hill, right before she stops rolling.
B Just after the top of the hill, right as she starts rolling down the hill
C At the top of the hill before she had started rolling down the hill
D At the bottom of the hill, just as she stops rolling.

1 answer

Kinetic energy is the energy of motion. As Kendra rolls down the hill, her potential energy (due to her height) is converted into kinetic energy (due to her motion). As she descends, her height decreases, and her kinetic energy increases.

The kinetic energy is highest when she is moving the fastest. This typically occurs at the bottom of the hill, where she has converted most of her potential energy into kinetic energy.

Therefore, the correct answer is:

A At the bottom of the hill, right before she stops rolling.