Question

A body thrown upwards reaches to the height of 100m , if g=10m/s? Find the
initial velocity of projection.​

Answer 1

answer =20√5

Explanation:

v² -u²= 2as

here, a=g , S = h , u =0

then

v² -0² = 2(10)(100)

v² = 2000

v= √2000

v = 20√5