Question

The mass of a balloon with its contents is 1.5 kg. It is descending with an acceleration equal to half that of acceleration due to gravity. If it is to go up with same acceleration, keeping the volume same, the mass of the gas in the balloon should be decrease by​

Answer 1

Answer:

1 kg

Explanation:

Equation for 1st case :

Mg/2 = F - Mg

Equation for 2nd case :

(M-m)g/2 = F-(M-m)g

Solving 1 and 2, we get,

$\boxed{m = 1 kg}$