Solve the following examples / numerical problems:
A satellite of mass 100 kg performs uniform circular motion around the earth at a height of 6400 km from the earth's surface . Find its gravitational potential energy. [g=9.8 m/s^2, R=6400 km]

Solve the following examples / numerical problems: If the body performs uniform circular motion around the earth at a height of 3600 km from the earth's surface, what will be its gravitational potential energy ?

Solve the following examples: (numerical problems) A body of mass 10 kg moves with a velocity of 5 m/s. Find its momentum.

Solve the following examples / numerical problems: A metal ball of mass 5 kg falls from a height of 490 m. How much time will it take to reach the ground ?

A body of mass m is placed on the earth surface is taken to a height of h=3R , then, change in gravitational potential energy is

Solve the following examples / numerical problems: Find the gravitational force between a man of mass 50 kg and a car of mass 1500 kg separated by 10m.

Solve the following examples / numerical problems: An object takes 5 s to reach the ground from a height of 5 m on a planet . What is the value of g on the planet ?

Solve the following examples / numerical problems: Assuming that the earth performs uniform circular motion around the Sun, find the centripetal acceleration of the earth. [Speed of the earth =3 xx10^4 m/s, distance between the earth and the Sun= 1.5xx10^11 m]

Solve the following examples / numerical problems: A body of mass 20 kg is at rest on the earth's surface. (i) Find its gravitational potential energy. (ii) Find the kinetic energy to be provided to the body to make it free from the gravitational influence of the earth. (g=9.8 m/s^2, R=6400km)

Solve the following examples / numerical problems: Find the magnitude of the acceleration due to gravity at the surface of the earth. ( M= 6xx 10^24 kg, R= 6400 km)

Solve the following examples / numerical problems: Two spheres of uniform density have masses 10 kg and 40 kg . The distance between the centres of the spheres is 200 m. Find the gravitational force between them.