Question

A balloon starts rising from the rest with acceleration 2m /s sqr from the ground after 4 seconds a stone is released from the balloon find the displacement covered by the song from position where from stone is released (take g= 10 m/s sqr\

a) 3.2 m
b) 19.2
c) 16 m
d)22.4

Answer 1

given

u = 0

a = 2m/s^2 .

g = 10m/s^2

t = 2s

Now

s= ut + at^2/2

s = 2*4*4/2= 16m