Question

Gopal dropped an apple from a height 10 m .He told his sister on the ground below that it will reach ground in 2 second.
a) Can she catch it after 2 seconds?
b) Derive a suitable relation to get the time of fall of apple.

Answer 1

Answer:

Gopal dropped an apple from a height 10 m .He told his sister on the ground below that it will reach ground in 2 second.

a) Can she catch it after 2 seconds?

b) Derive a suitable relation to get the time of fall of apple.

Answer 2

Explanation:

a)No

b)S = ut + 1/2at2

h = 0 + 1/2gt2

If the apple is dropped from a height ‘h’, we can write.

• √2h/g= t