Question

a ball is dropped from the top of a tower .the ratio of work done by force of gravity in 1st 2nd and 3rd second of the motion of ball is 1) 1:2:3 2) 1;4:16 3)1:3:5 4)1:9:25​

Answer 1

Answer:

Let us consider W1 for work done by force of gravity in first second ... To calculate h , we will use one of the equations of motions i.e. S =ut + ... On dividing above 3eqs we get : 1:3:5.

Answer 2

Explanation:

According to Galileo

dropped ball will be in ratio =>

3) 1:3:5

Or u can say

x :3x :5x

Hope it helps uh!!!!