Question

A ball is dropped from the top of a building 122.5m high. How long will it take to reach the ground? What will be it's velocity when it strikes the ground?
( use g=9.8 )
plz answer ​

Answer 1

Answer:

The final velocity is 49 m/s.

Here, u is initial velocity t is the time taken and g is acceleration due to gravity. as ball is dropped from the top of the building, so u = 0. t = 5 s. Thus, the time taken by the ball to reach the ground is 5 s.

Explanation:

Hope, this will help you.