Question

a collie lifts a luggage of 15 kg from the ground and puts it on its hat 1.5m above the ground. calculate the work done by him on the luggage.

Answer 1

we know that

Work done (w)=Fs

But

Force(F)=mg

then ,

work done =mgs. (F=mg)

then putting the value,

w=(15×9.8×1.5) J

w= 220.5J