Question

If the energy of a ball falling from height of 10 metres is reduced 40% how high it will rebound ​

Answer 1

Answer:

6 metres hope it helps you

Answer 2

Answer:

Data : h1 = 10m,

E2 = E1 - E2 = E1 × 40

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100

= E1 (1-0.4) = 0.6 E1, h2 = ?

E1 = mgh1, E2 = mgh2

E2 = 0.6E1

The ball will rebound to a height 6m.