At the top of a hill, an athlete on a skateboard has X joules of mechanical energy. How much mechanical energy

Question

At the top of a hill, an athlete on a skateboard has X joules of mechanical energy. How much mechanical energy will she have at the bottom of the hill? Ignore the effects of friction.

X joules

less than X joules

more than X joules

There is not enough information to know.

GPT-5 mini · Answer

X joules.

With no friction, mechanical energy (KE + PE) is conserved. As she descends, potential energy decreases but kinetic energy increases by the same amount, so the total stays X.

At the top of a hill, an athlete on a skateboard has X joules of mechanical energy. How much mechanical energy will she have at the bottom of the hill? Ignore the effects of friction.

X joules

less than X joules

more than X joules

There is not enough information to know.

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At the top of a hill, an athlete on a skateboard has X joules of mechanical energy. How much mechanical energy will she have at the bottom of the hill? Ignore the effects of friction. X joules less than X joules more than X joules There is not enough information to know.

All Answers 1

Submit Your Answer

At the top of a hill, an athlete on a skateboard has X joules of mechanical energy. How much mechanical energy will she have at the bottom of the hill? Ignore the effects of friction.

X joules

less than X joules

more than X joules

There is not enough information to know.