Question

two balls are thrown vertically upward simuttaneously with initial velocities.10m/s and 20m/s. Find the ratio of heights attained by the two balls.

Answer 1

Answer:1:4

Explanation: Case 1 :

u= 10m/s

v=0

a= –10m/s^2

Using v^2 – u^2 = 2as

We get ; s= 5m

Case 2 :

u= 20m/s

v= 0

a = –10m/s^2

Using v^2 – u^2 = 2as

We get ; s= 20 m

Taking ratio of both... 5 : 20 or 1 : 4