You drop a ball from a height of 2.5 m , and it bounces back to...

Question

Question

You drop a ball from a height of 2.5 m , and it bounces back to a height of 1.9 m .

a) What fraction of its initial energy is lost during the bounce?

b) What is the ball's speed just before the bounce?

c) What is the ball's speed just after the bounce?

d) Where did the energy go?

The energy "lost" was changed primarily into thermal energy due to friction.

The energy "lost" was changed primarily into acoustic energy.

The energy "lost" was changed primarily into heat energy.

The energy "lost" was changed primarily into chemical energy.

Answer 1

Answer #1

Based on conservation of machenical energy.....

Solutio Initici Energ Fineil Enerqu = mg (1.9) 2.5 m 1.9 m ne a los H mg (9.5-1-9) 0.24- ng (o.5) bcls speed Just be lore bou

If convenient please upvote....

Answer 2

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