Calculate the work done to move an object of 50g in a circular path of radius 10cm

Work done = 0.31 J

Explanation:

Radius, r = 10cm = 0.1 m

Mass of the object, m = 50 g = 0.05 kg

Force, F = mg = 0.05 * 9.8

F = 0.49 N

Distance covered by the object = 2πr

Distance moved by the object = 2π*0.1 = 0.63 m

Work done = Force * Distance

Work done = 0.49 * 0.63

Work done = 0.31 J