A ball is dropped from Point A and bounces on the floor at Point B before reaching Point C. Which of the following is true about the energy of the ball at Point C compared to Point A?
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Worked Solution
Step 1: At Point A, the ball has GPE.
Step [2-9]: When it bounces, some energy is converted to heat and sound upon impact.
Step [2-9]: Consequently, there is less energy available to reach the original height, so Point C is lower and has less GPE/total mechanical energy.
Correct answer: It has less total energy at C than A due to energy conversion into heat and sound.
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