choose the correct alternative: escape velocity is independent of the mass of the earth/ the mass of the body.

Weight of a body depends directly on 'g'. The value of 'g' depends on many factors like shape of earth, rotation of earth etc. Choose the correct alternative. g is independent of mass of the earth/mass of the body.

Acceleration due to gravity is independent of__________ (mass of the earth // mass of the body) .

Choose the correct alternative: When a conservative force does positive work on a body, the potential energy of the body increases/decreases/remains inaltered.

Weight of a body is the force of gravitational attraction experienced by it. It is equal to the product of mass of the body and acceleration due to gravity. Obtain an expression for the acceleration due to gravity of a body in terms of the mass of the earth.

Choose the correct alternative: Work done by a body against friction always results in a loss of its kinetic/potential energy.