Question

A stone dropped from the top of the tower touches the ground in 4 s. The height of the tower
(a) 8.4 m (b) 522 m
(c) 24.0 m
(d) 12.8 m​

Answer 1

the options are wrong H =80 will be the answer

Explanation:

t=4 sec

g=10m/s2

u=0

h=?

h=u+ 1/2gt^2

h=0+ 1/2 ×10×(4)^2

h=1/2×10×16

h=10×8

h=80