a ball of mass 42 kg is dropped from a height of 72 m. what is...

Question

Question

a ball of mass 42 kg is dropped from a height of 72 m. what is the height at which the velocity is exactly half

Answer 1

Answer #1

To solve the problem only Energy Conservation Principle is used at the three very places,see the diagram carefully.

The height required is 54 metre from the ground.

Answer 2

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