Displacement in the direction of Force
Displacement in the direction of Force
Displacement in the direction of the force: Dispalcement is difined as the change in the positon of the object. It is a vector quantity therefore it has both magnitude and direction. If the displacement of an object is in the direction of the force applied on it, the amount of the work done by the force on this object is obtained by multiplying the force and the displacement.The work done by such force is always positive.
Work done in the direction of of force = Force x displacement = F x s
Examples:
1. When a horse pulls a cart , the applied force and the displacement are in the same direction.
2. While kicking a football the displacement occur in the direction of force .
3. When a body is fallling down from somr height the direction of force and the displacement are in the same direction.
A person lifts a 5 kg bag from the ground and places it on his head, 1.3m above the ground.The work done by him on the bag is | |||
| Right Option : C | |||
| View Explanation | |||
In which of the following situation, the work done by a force on a body will be positive. | |||
| Right Option : C | |||
| View Explanation |
Calculate the displacement in a body if 20 J of work is done in displacing it through some distance by applying a force of 5 N. | |||
| Right Option : A | |||
| View Explanation | |||
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