Question

An object of mass 3kg is thrown vertically upward with a velocity of 10 m/s. Find
(i)the kinetic energy of the body at the time of throwing (ii)its P.E at the highest point​

Answer 1

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Here is your answer

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Answer 2

m = 5 kg
u = 10m/s
K E = 1/2×m×u^2
= 1/2×5×100
= 250J
loss in KE = gain in PE
→ PE = 250
also PE = m×g×h
250=5×10×h
→ H = 5m