A body of mass 40 Kg covers a distance of 50 m in 5s starting from rest under the influence of a force. What is the work done by the force on the body?

Work is the transfer of energy by a force acting on an object as it is displaced. The work that a force does on an object is the product of the magnitude of the force, times the magnitude of the displacement, times the cosine of the angle between them. In symbols, The SI unit for work and energy is the joule (J).