Question

A stone dropped from a tower reaches the ground in 5s.calculate the velocity with which it will hit the ground?

Answer 1

Answer:

v=u+at

u=0

v = at

here a= g

t=5sec

= 9.8×5

=49 meter/sec speed

Answer 2

Answer:

The stone is dropped from tower. Then time of travel t = 5 seconds. Hence final velocity = 0 + 9.8 * 5 = 49 m/sec.