Question

A students caries a bag weighing 5 kg from the ground floor to his class on the first floor that is 2 m high. The work done by the boy is
(a) 1 J (b) 10 J (c) 100 J (d) 1000 J

Answer 1

Answer:

force = mass × acceleration

F=5kg× gravitational acceleration ( 10) =50

work = force × displacement (F ×d ) =50× 2 = 100

so answer is 100 J

Answer 2

Answer:

Your answer is in the above pic