When a conservative force does positive work on a body then what happens to its potential energy?
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(a) Decreases
When we work on the body then i may be possible it become in motion so if we work on body ,then kinetic energy increase and potential energy decrease.
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(b) Kinetic energy
The work done against the direction of friction decrease the velocity of a body. so, there is a loss of kinetic energy of the body.
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(c) External force
If their is no internal force work on body then the external force is require to attend change in linear momentum .
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(d) Total linear momentum
The total linear momentum always remains conserved whether it is an elastic collision or an inelastic collision.
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When we work on the body then i may be possible it become in motion so if we work on body ,then kinetic energy increase and potential energy decrease.
___________________________________
(b) Kinetic energy
The work done against the direction of friction decrease the velocity of a body. so, there is a loss of kinetic energy of the body.
____________________________________
(c) External force
If their is no internal force work on body then the external force is require to attend change in linear momentum .
__________________________________
(d) Total linear momentum
The total linear momentum always remains conserved whether it is an elastic collision or an inelastic collision.
______________________________
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