Question

body is projected vertically up with velocity 10 metre per second on reaching the ground change in its velocity is​

Answer 1

Answer:

let the acceleration due to gravity ie g=-10m/s^-2

Max height H=u^2/2g

H=100/2*10

=5m

velocity with which the body hots th ground

V=√(u^2+2gh

V=√(100+2*10*5)

V=√(200)

V=10√2

change in velocity is √2m/s

hope it helps all the best wishes for you exams