Question

A stone is droped from the edge of
edge of a roof
How long does it take to fall 4.9m?​

Answer 1

Answer: If a stone is falling freely in gravitational field of earth then it will expiernce acceleration of g = 9.8 m/s2. Answer: From h = 1/2gt^2 , where intial velocity is zero, put g = 9.8m/sec^2, and h = 4.9 m as per your question, you get the value of t=1 sec

Answer 2

Answer:

1 second

Explanation:

to find the time,

we can use s=ut+1/2gt^2

u= 0 m/s

s= 4.9 m

g= 9.8 m/s

4.9 = 0*t+1/2*9.8(t)^2

t= 1sec

...............

hope this helps u friend.....