Question

According to sicence work = force *displacement soo what if the starting and ending point of the displacement will be same soo is the work is done here FOR EX - circle the starting and ending point is same .
ex - like circle

Answer 1

Answer:

Force acting on the body = 10 kgf = 10 x 10 N = 100 N

Displacement, S=0.5 m

Work done= force x displacement in the direction of force

(i)W =F x S

W = 100 x 0.5= 50 J

(ii)Work = force x displacement in the direction of force

W = F x S costheta

W = 100 x 0.5 cos60o

W= 100 x0.5 x 0.5(cos60o=0.5)

W=25 J