Question

the work done by a person is carrying a box of mass 15 kg through a vertical height of 5m is 4900j what is the mass of the person​

Answer 1

Let the mass of the person be 'M'

Work done

F

.

S

So, The work done by a person in carrying a box of mass 10 kg. through a vertical height of 10 m =(M+10)gH=(M+10)×9.8×10=4900

⇒M+10=50⇒M=40Kg