Question

it takes 20 sec for a person A of mass 50 kg to climb up the stairs while another person of same mass does the same in 15 sec . compare work done

Answer 1

person a
m= 50kg
v= 20 s
mv = 50*20= 1000
person b
m= 50 kg
v= 15 s
mv= 50*15= 750