A helicopter is rising vertically up with a velocity of `5 ms^( �1)`. A ball is projected vertically
Channel: Doubtnut
Date: 16/02/2020

A helicopter is rising vertically up with a velocity of `5 ms^( �1)`. A ball is projected vertically up from the helicopter with a velocity V (relative to the ground). The ball crosses the helicopter 3 second after its projection. Find V.