Question

A child pulls a toy car through a distance of 10metres on a smooth,horizontal floor.The string held in child's hand makes an angle of 60 degree with the horizontal surface. If the force applied by the child be 5N,calculate the work done by thr child in pulling the toy car.

Answer 1

given, force F=5N
distance s=10m
engle between the toy car and the ground =60degree
therefore, Work done W=Fscos60
W=5x10cos60
W=50x0.5
W=25joules

Answer 2

Answer:

given, force F=5N

distance s=10m

engle between the toy car and the ground =60degree

therefore, Work done W=Fscos60

W=5x10cos60

W=50x0.5

W=25joules