Question

when work done on a particle is positive then its kinetic energy options are first increases second decreases third remain same 4th Momentum increases ​

Answer 1

Answer:

The answer is that the kinetic energy increases...

This is because work done is directly proportional to kinetic energy.

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Answer 2

Explanation:

• An object's motion as a result of work done to it changes the kinetic energy of the thing. Therefore, an increase in kinetic energy will result from a net work that is positive (+).

• Kinetic energy rises when the amount of work done is positive. Momentum grows because of the direct relationship between kinetic energy and momentum. The right answers are therefore (2) and (3).

• The work energy theorem states that Work is equal to K (f)-K (i) when it is positive.

• Thus, if conservative force's work is productive, the body's kinetic energy will rise. This is due to the law of conservation of energy, which states that when potential energy falls, kinetic energy must rise proportionately.