Question

An object is thrown from a building rertically downwand
with speed 10m/s find the time to reach the ground if height
al building is 100m
​

Answer 1

Answer:

2 second

Explanation:

The ball will return to its initial point with a velocity which is same in magnitude and it will reverse its direction .

Therefore,

            t  =  2u          

                  ___

                    g

               =  2 x 10

                   ____

                     10

               = 2 second

Answer 2

Hi mate

Refer the attachment

I Hope This Would Help You..

Thank my answer and do follow