Question

A STONE OF MASS 0.105Kg IS PROJECTED VERTICALLY UPWARD BY EXPENDING 100J OF ENERGY.HOW HIGH THE STONE RISES?​

Answer 1

Explanation:

80 metres is right answer

Answer 2

Answer:

h = 95.23 m

Explanation:

m = 0.105 kg or  105/1000 kg

P.E. = 100 J

g = -10 m/$s^{2}$

let h be height.

then-

P.E. = mgh

100 J = 105/1000 x 10 x h

10000/105 = h

h = 95.23

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