1)Give five example of negative work done with explanation?

Asked by  | 23rd Dec, 2013, 07:05: PM

Expert Answer:

 (1) The work done by the frictional force, when we push the book to a distance.

(2) The work done by the gravitational force, when we are lifting a bucket of water from the well.

(3) The work done by the gravitational force, when we are climbing on a tree.

(4) The work done by the frictional force of air, when a ball is falling downwards.

(5) The work done by the buoyant force, when a coin is sinking.
 
In all the above cases, the force acts opposite to the direction of motion.

Answered by  | 23rd Dec, 2013, 10:12: PM

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