Question

help help help pls ..it's urgent ...with proper explanation..!!​

Answer 1

Answer:5sec

Explanation:

v^2-u^2=2as

0-20^2=2*a*50

a=-4m/s^2

v=u+at

0=20-4t

t=5sec

If you like it pls brain list me

Answer 2

Answer:

Explanation:

Hope it helps u..