A child pulls a toy bus through a distance of 50 m on a smooth horizontal floor. The string held in the child's hand makes an angle of 60∘ with the horizontal surface. If the force applied by the child is 20N. Calculate the work done by the child in pulling the toy car.
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500 Joules is the work done by the child in pulling the car.
Explanation:
W= F×D×cos(theta)
W= 20×50×cos(60°)
W= 1000×1/2
W= 500 Joules
where, F= Force
D= Distance
theta= Angle
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