Question

Calculate the amount of work done in lifting a body of mass 3 kg through a distance of 11 m

Answer 1

Work=Force.distance

Since the body has been lifted gravitational force is acting on it which is mg

Now

W=mg.distance=3×9.8×11=323.4J

PLS feel free to ask more doubts

Answer 2

w= Force×Displacement

so,

work= Mass×acceleration×Displacement

so,

work= 3×9.5×11=313.5 joules