Question

Gravitation on moon is $\frac{1}{6}$th of that on earth . When a balloon filled with hydrogen is released on moon then this:

• A. will rise with an acceleration less then $\frac{g}{6}$
• B. will rise with acceleration $\frac{g}{6}$
• C. will fall down with an acceleration less then $\frac{5g}{6}$
• D. will fall down acceleration $\frac{g}{6}$

Answer 1

The correct option is D will fall down acceleration $\frac{g}{6}$

There is no atmosphere on the moon. On earth, air provides enough Buoyant Force. So,that the balloon rises up. Thus, on moon, only gravity acts on it and so it will fall down with acceleration $=\frac{g}{6}$