Calculate the potential energy of a body of mass 5 kg at a height of 2m from the ground.

Find the gravitational potential energy of a body of mass 10 kg when it is at a height of 6400 km from the earth's surface. [M (earth) = 6xx 10^24 kg, R(earth) =6400 km]

State whtether the following statement are true or false. The potential energy of a body of mass 1kg kept at height 1 m is 1J.

Calculate the work done to take an object of mass 20 kg to a height of 10 m.

Find the change in the gravitational potential energy when a body of mass m is raised to a height nR above the surface of the earth. (Here, R is the radius of the earth)

What will be the change in potential energy of a body of mass m when it is raised from height R_E above the Earth’s surface to 5/2 R_E above the Earth’s surface? R_E and M_E are the radius and mass of the Earth respectively

The kinetic energy of a body of mass 4 kg and momentum 6 N-s will be

Calculate the work done to take an object of mass 20 kg to a height of 10 m. (g = 9.8 m/s2)

M_e is the mass of earth and M_m is the mass of moon ( M_e=81 M_m ). The potential energy of an object of mass m is a distance R from the Centre of earth and r from the centre of moon, will be

Choose the correct alternative and write it along with its allotted alphabet: The gravitational potential energy of a body at a height h from surface of the energy is ……. A. 1/2 mgh B. mgh C. mv^2 D. mg

Answer the following questions : Compare the gravitational force on a body of mass 1 kg due to the earth with the force on the same body due to another body of mass 1 kg at a distance of 1m from the first body. (Mass of the earth = 6xx10^24 kg, radius of the earth= 6400 km)