Question

A stone is released from a hot- air balloon which is rising steadily at 4m/s. Find the velocity of the stone after 3 s of release

Answer 1

Answer:25.4 m/s downward

Explanation:

Given

Initial velocity of stone is same as hot air balloon

$u=-4 m/s$

considering motion of balloon as negative

acceleration due to gravity is acting downward therefore consider it to be positive

$v=u+at$

$v=-4+9.8\times 3=25.4 m/s$ downward