Question

A man in a balloon throw a stone vertically down

with a speed of 5 m/s with respect to balloon. The

balloon is moving upward with a constant

acceleration of 5 m/s2 at the instant. The velocity

of stone relative to man after 2 seconds in m/s is​

Answer 1

Answer:

Initial speed u=5 m/s

After 2 second v=u+gt=5+10×20=25 m/s

& the speed of balloon after 2 second will v=  

2

1

​  

a(2)  

2

=2a=2×5=10 m/s

Balloon upward  

Stone downward  

So opposite so speed should be added so relative speed =25+10

=35 m/s