Respuesta :
Let us evaluate the given answers.
A.
Because the wind-up toy has been unwound, it has no stored elastic potential energy.
This is not a correct answer.
B.
A basketball on the ground is in equilibrium. It has no stored elastic energy.
This not a correct answer.
C.
A stretched rubber band is not in equilibrium. It has stored elastic energy that will do work (propel the rubber band) when it is released.
This is a correct answer
D.
This is not a correct answer because only C is correct.
Answer: C
A.
Because the wind-up toy has been unwound, it has no stored elastic potential energy.
This is not a correct answer.
B.
A basketball on the ground is in equilibrium. It has no stored elastic energy.
This not a correct answer.
C.
A stretched rubber band is not in equilibrium. It has stored elastic energy that will do work (propel the rubber band) when it is released.
This is a correct answer
D.
This is not a correct answer because only C is correct.
Answer: C