Question

state (with reasons ) whether work done in the following cases is positive or negative:<br />e. Work done in moving on a circular track<br />f. Work done by a man in lifting a bucket out of a well with the help of a rope tied to the bucket <br />g. Work done by the gravitational force in case f.<br />h. Work done by friction on a body sliding down<br />an inclined plane<br /><br />i. Work done by a force applied on a body moving on a rough horizontal plane with uniform velocity.<br /><br />J. Work done by the resistive force of air on a vibrating pendulum to bring it to rest.​

Answer 1

Explanation:

• positive
• positive
• negative
• negative
• positive
• negative

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Answer 2

Answer:

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