Question

A body of mass 3 Kg is dropped from the height of 1 meter. The kinetic energy of the body will be ___when it touches the ground.

Answer 1

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Here's the answer you are looking for

A body of mass 3 Kg is dropped from the height of 1m.

So, potential energy of the body
= mgh
= (3 × 10 × 1) J
= 30J

When the body touches the ground, it's potential energy becomes zero and because of the conservation of energy, the potential energy gets converted into kinetic energy.

So, the kinetic energy of the object at the ground = potential energy of the body at 1m = 30J

Therefore, the kinetic energy of the body will be 30 J when it touches the ground.


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Answer 2

A body of mass 3 Kg is dropped from the height of 1m. When the body touches the ground, it's potential energy becomes zero and because of the conservation of energy, the potential energy gets converted into kinetic energy. Therefore, the kinetic energy of the body will be 30 J when it touches the ground.