7 Articles Tagged as: **Work Energy and power**

7

A person can carry 20 bricks at a time. Each brick weighs 10 N. If he takes 50 s to carry 20 such bricks to a distance of 100m, what is his power?

A man displaces a box at a distance of 20m by applying 20N force. What is his work done? If he takes 2 sec time for the work, calculate power.

An inclined plane is 3m high. If a kid sits at the top, what will be his potential energy? The mass of the kid is 40 kg.

If a stone of 0.5 kg is thrown with a speed of 5 m/s, find its kinetic energy.

What is the energy required to lift an object of mass 25 kg to a height of 10 m?

Explain the relation between work and energy with examples.

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