Question

A body dropped from the top of a tower reaches the ground in 4 seconds. What is the height of the tower, if a = 10 m s–2?0ⁿ​

Answer 1

We have, s=ut+

2

1

at

2

Given,

t=4 sec

a=g

u=0

⇒s=

2

1

gt

2

s=

2

1

g(4)

2

=8g=8×9.8=78.4 m

Height of the tower = 78.4 m