Question

An object thrown vertically upwards reaches at height at500m .what was irs initial velocity ?how long will the object take to come back to the earth ?assume mm g:10m/s

Answer 1

hey friend,here is your answer
given:
s=500m
u=?=0
v=?
g=a=10m/s2
as we know
v2=u2+2as
therefore..... putting those values
v2=0+2×10×500
v2=10000
v=√10000
v=100m/s2
hence,we know that
v=u+at
therefore,putting those values
100=0+10×t
10t=100
t=10
therefore t=10s ans.
hope helped