Question

From the ground floor,the man comes up to the fourth of a building using staircase,another person comes up to the same floor using a elevator, neglecting friction calculate the work done in two cases

Answer 1

same work as they went to the same height...

Answer 2

Work done in two cases is same.

•Work done on a system by a constant force is defined "to be the product of the component of the force in the direction of motion times the distance through which the force acts."

•The displacement is same in both the cases.

•This is due to movement from ground floor to fourth floor.

•Thus, since displacement is same, work done is same in both the cases.

•Ratio of work done will be 1:1.

•Hence, the answer the work done is same in both the cases.