A ball is dropped from a height. As it falls and hits the ground before bouncing up, which of the following energy conversions is correct for the moment it hits the ground and compresses?
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Worked Solution
Step 1: As the ball falls, GPE converts to KE.
Step 2: At impact, the ball compresses. The KE is converted into Elastic Potential Energy stored in the ball.
Step 3: Sound and Heat are also produced during the impact.
Step 4: The correct sequence is KE → EPE + Sound + Heat.
Correct answer: Kinetic Energy → Elastic Potential Energy + Sound + Heat
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