Match List - I with List - II

	List - I		List - II
(a)	Gravitational constant (G)	(i)	$$[{L^2}{T^{ - 2}}]$$
(b)	Gravitational potential energy	(ii)	$$[{M^{ - 1}}{L^3}{T^{ - 2}}]$$
(c)	Gravitational potential	(iii)	$$[L{T^{ - 2}}]$$
(d)	Gravitational intensity	(iv)	$$[M{L^2}{T^{ - 2}}]$$

Choose the correct answer from the options given below

The escape velocity from the Earth's surface is v. The escape velocity from the surface of another planet having a radius, four times that of Earth and same mass density is :

A particle of mass 'm' is projected with a velocity $$\upsilon $$ = kV_e = (k < 1) from the surface of the earth. (V_e = escape velocity)

The maximum height above the surface reached by the particle is :

A body weighs 72 N on the surface of the earth. What is the gravitational force on it, at a height equal to half the radius of the earth?