Question

A stone is dropped from a rising balloon when the balloon is at a height of 30 metres above the ground the stone reaches the ground in 10 seconds what is the velocity of the balloon at the moment the stone was dropped where the initial velocity is 47metre per second

Answer 1

Hii Dear,

◆ Answer -

Velocity = 47 m/s upwards

● Explaination -

# Given -

s = 30 m

t = 10 s

# Solution -

For a stone to reach the ground,

s = ut + 1/2 at^2

30 = u × 10 + 1/2 × 10 × 10^2

30 = 10u + 500

10u = -500 + 30

u = -470 / 10

u = -47 m/s

Therefore, velocity of the ballon was 47 m/s in upward direction when stone was dropped from it.

Thanks dear...