Question

10. A balloon is moving with a velocity of 5ms
upward direction. At t = 0, balloon is at the
ground. At t = 10 s, a ball is left gently from the
balloon. Find the speed of ball at the ground.​

Answer 1

Answer:

u1=5

u1=0

a=10m/s

t=10s

Explanation:

s=ut+1/2 at2

so, s=500 m

V=u+at

so, u2=0

V=at

V=10*10

V=100m/s

or by

V2=u2+2as

V2=u2+2as

V2=2*10*500

V2=1000

V=100

answer is V=100