Question

If the velocity of wind is U at a height H, then at which height velocity of wind will be 2U?
a) 16H
b)32H
c) 64H
d) 128H

Answer 1

ANSWER

At maximum height, velocity of body is zero i.e. v=0

Initial velocity is u

Acceleration a=−g

Using v

2

−u

2

=2aS

∴ 0−u

2

=2(−g)h

⟹ h=

2g

u

2