Question

Two stones are projected from the top of a tower 100 m high, each with a velocity of 20 m/s, one is projected vertically
upwards and the other vertically downwards.
Calculate the time each stone takes to reach the ground.
(b)
With what velocity will they strike the ground ? (Take g = 10 m/s)
​

Answer 1

Explanation:

h=1/2gt²

100=1/2x10xt²

t²=20

t=root20

t=2root5

v=u+at

v=0+(10)(2root5)=

OK friend