Question

An object is projected upward with a velocity 49m/s it will come to the ground after a time ???? ​

Answer 1

u=49m/s

v=0m/s

g=10m/s^2

taking upward direction as positive

v=u+at

0=49-10t

49=10t

t=4.9s -time taken for upward journey

total time T will be

T=2t

=2×4.9

T=5.8s -ans