Answer :
One joule of work is defined as the amount of energy exerted when a force of one Newton is applied over a displacement of one meter.
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Give reason for the following :
Pardeep says that the acceleration in an object could be zero even when several forces are acting on it. Do you agree with him? Why?
Evergreen - ScienceWhich of the following does not possess the ability to do work not because of motion?
A. A sparrow flying in the sky
B. A sparrow moving slowly on the ground
C. A sparrow in the nest on a tree
D. A squirrel going up a tree
Lakhmir Singh & Manjit Kaur - PhysicsWhat should be the angle between the direction of force and the direction of motion of a body so that the work done is zero?
Lakhmir Singh & Manjit Kaur - PhysicsIn case of negative work, the angle between the force and displacement is:
A. 0o B. 45o
C. 90o D. 180o
Lakhmir Singh & Manjit Kaur - PhysicsWhen do we say that work is done? Write the formula for the work done by a body in moving up against gravity. Give the meaning of each symbol which occurs in it.
Lakhmir Singh & Manjit Kaur - PhysicsIs it possible that a force is acting on a body but still work done is zero? Explain giving one example.
Lakhmir Singh & Manjit Kaur - PhysicsWhen a force retards the motion of a body, the work done is :
Evergreen - Science