A perfectly spherical planet X has twice the radius of Earth and half the average density. An object weighs 100 N on Earth's surface. What would be its weight on the surface of planet X?

If the radius of curvature of the path of two particles of same masses are in the ratio $1:2$, then in order to have constant centripetal force, their velocity, should be in the ratio of

The value of acceleration due to gravity at the surface of earth

A newly discovered exoplanet has $\frac{1}{6}$ the mass of Earth and $\frac{1}{3}$ the diameter of Earth. What is the acceleration due to gravity on this exoplanet?

A particle of mass m moves with constant speed along a circular path of radius r under the action of force F. Its speed is

What is the weight of a 700 gm of body on a planet whose mass is 1/7th of that of earth and radius is

1/2 of earth

At what height above the Earth's surface is the value of 'g' half of its value at the surface? (R = Radius of Earth)

A body has a weight $72 \mathrm{~N}$. When it is taken to a height $h=R=$ radius of earth, it would weight

A body weighs $72 \mathrm{~N}$ on the surface of the earth. What is the gravitational force on it due to earth at a height equal to half the radius of the earth from the surface?

A man weighs $\mathrm{W}$ on the surface of the earth. What is his weight at a height equal to $\mathrm{R}$ ? $\mathrm{R} \rightarrow$ Radius of earth)

The acceleration due to gravity at a height 1 km above the earth is the same as at a depth $d$ below the surface of earth. Then