Question

A stone drop from the top of a tower reaches the ground in 2sec if g is 10m/sec, then what is the length of tower?

Answer 1

Hey dear here is your answer!!!

According to question :-
t=2sec
g=10m/s^2
u=0

S = ut + 1/2 at^2
S =0+1/2*10*4
S=20m

Hope it may help u!!!

Answer 2

Given :-

Time (t) = 2 s

Acceleration due to gravity (g) = 10 m/s^2

S = ut + 1/2 at^2

S = 0 + 1/2 × 10 × 2 × 2

S = 10 × 2 m

$\bold{S = 20\:m}$