A boy applies a force of 20 Nand moves an object 50 cm in the direction of force. What is the work done by the boy?
Answers
Answer:
Work done 10 Joule
Explanation:
Force applied = 20N
Displacement of object = 50cm in direction of force
Need to find:
Work done =?
Solution :
Displacement = 50cm = 0.5m
Now we know
Work done = Force × Displacement
⟹ Work done = 20N × 0.5 m
⟹ Work done = 10 Joules
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Knowledge cell:
Work done by a constant force is equal to the scales product of the force applied and displacement of the point of application.
Work = Force × Component of force along displacement
Is represented by : W = F.d. cos \thetaθ
Work is a scaler quantity
Answer:
Explanation:
Force applied = 20N
Displacement of object = 50cm in direction of force
Work done =?
Displacement = 50cm = 0.5m (given)
Work done = Force × Displacement
Work done = 20N × 0.5 m
Work done = 10 Joules