Question

please amswer this question,please please

Answer 1

Given that:- a=10 m/s^2
t=?
Since , the body is moving against gravity,therefore, v=u-gt
v=0
u=5m/s
a=10m/s^2
0=5-10t
-5=-10t
t=0.5 seconds.
Now, v^2=u^2-2gS
and since displacement covered here =height
therefore:- 0=5^2-2×10×h
25/20=h
h=1.25m