Question

A stone is thrown with a speed of 20m/s from a tower of height 200m the speed with which it strikes the ground is approximately

Answer 1

v2 = u2 + 2gh

v = ?

u = 20

h = 200m

g = 9.8

v2 = 20*20 + 2*9.8*200

v2 = 4320

v = √4320

v = 65.7 approx.

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