The centripetal force depends on mass of the body, velocity and radius of circular path. Find the expression for the centripetal force acting on the body using the principle of dimensional analysis. (Take constant k=1)

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.

The centripetal force on a body in circular motion is given by F=(mv^2)/r . Using the above formula, write an equation to find % error in centripetal force.