Question

Statement (A): Work done by a man in lifting a bucket out of well, by means of a rope tied to the bucket, is positive.
Statement (B): In the above case, work done by the gravitational force is negative.

A

Both A and B are true

B

Both A and B are false

C

A is true and B is false

D

A is false and B is true

Medium
Solution
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Correct option is A)

A- Point of application of force is moving along the direction of applied force. Therefore, work done by man on the bucket is positive.

B- Displacement of bucket is opposite to the gravitational force, therefore negative work is done.   

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