Question

a stone is allowed to fall from the top of a tower 100 m high and at the same time another stone is projected vertically upward from a on the ground with a velocity of 25 metre per second calculate when when where the to stone will be brainly.in

Answer 1

Time = Relative Distance / Relative speed
= 100 / (25 - 0)
= 4 seconds
Both will meet after 4s from start.

Distance travelled by projected stone after 4s
S = ut + 0.5at^2
S = 25*4 + 0.5*(-10)*4^2
S = 20 m
Stones will meet 20 m above the ground.