Force is required to lift a body from the ground to a height h and work is measured as the product of force and magnitude as the product of force and magnitude of displacement. A man of mass 60 kg carries a stone of mass 20 kg to the top of a multistorey building of height 50 m. Calculate the total energy spent by him?

Force is required to lift a body from the ground to a height h and wor

1.	Force is required to lift a body from the ground to a height h and work is measured as the product of force and magnitude as the product of force and magnitude of displacement. A man of mass 60 kg carries a stone of mass 20 kg to the top of a multistorey building of height 50 m. Calculate the total energy spent by him?
Answer» Solution :TOTAL energy = MGH = `(60 + 20)XX 9.8 xx 50 = 39200 J`