Question

Consider a hypothetical planet X whose mass and radius, both are two-third that of the Earth. If the weight of an object on the Earth is 180N then its weight on the planet X would be
(i) 270N
(ii)180N
(iii) 80N
(iv)120N​

Answer 1

Answer:

acceleration due to gravity,g=R2GM

Mass of the planet =v×d

M=34πGR3d

g=34πGRd

Acceleration of gravity depends on both R and density,So the gravity is 2g.

⁰

Answer 2

Answer:

It's Answer (IV) 120N ..