Question

A stone of mass 2kg is released from a height of 100meter calculate the potential energy kinetic energy when it is half way down​

Answer 1

The potential energy is 2000 N and Kinetic energy is 1000 N.

Explanation:

Given data:

Mass = 2 kg

Height = 100 m

• Potential energy = mgh

Potential energy = 2×10×100 (say, g=10 m/s²)

Potential energy = 2000 N

Potential energy for half distance = 2×10×50 = 1000 N

• As potential energy is being converted into kinetic energy.

Therefore, Kinetic energy = 1000 N

• Total energy = P.E + K.E

= (1000+1000) N =2000 N

Thus the potential energy is 2000 N and Kinetic energy is 1000 N.

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