example of negative work
Can we have negative work done?
Work can be either positive or negative: if the force has a component in the same direction as the displacement of the object, the force is doing positive work. If the force has a component in the direction opposite to the displacement, the force does negative work.
What is the difference between positive and negative work?
Positive work is said to be done when the force acting on a body produces a displacement in the direction of the force. Negative work is said to be done when the force acting on a body produces a displacement opposite to the direction of the force.
What is meant by negative work and zero work?
Negative work: If a force acting on a body has a component in the opposite direction of the displacement. Eg: When brakes are applied to a moving vehicle, the work done by the brake force is negative. Zero work: If the body gets displaced along a direction perpendicular to the direction of applied force.
What is negative work class 9?
Negative work
If the force and the displacement are in opposite directions, then the work is said to be negative. For example if a ball is thrown in upwards direction, its displacement would be in upwards direction but the force due to earth’s gravity is in the downward direction.
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