Physics, asked by anha9bkvppm, 3 months ago

A stone of mass 200g is dropped from a height of 4m Find its KE, PE at a height 3m and 1m above the surface

Answers

Answered by rajputprincess9302
1

Answer:

All the forces acting are conservative so mechanical emergy will be conserved for the body .

Taking ground surgace as refrence point its initial potential energy is mgh =9.8J. (converting all perameters in SI units)  

And final potential energy is zero as h=0.

Also its initial kinetic energy is zero.

Now applyning law of conservation of energy we get final kinetic energy is 9.8J

Explanation:

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