Question

State the conditions when the work done by a force is (1) positive (2) negative

Answer 1

HELLO FRND
__________

POSITIVE .


THER WORK IS POSITIVE WHEN THE DISPLACEMENT AND THE FORCE ACT In The same direction.


NAGATIVE.
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SAME LIKE OPPOSITE DIRECTION BOTH ARE FORCE AND DISPLACEMENT Act in opposite direction so its nagative.

and some


if in some case the Force acts but there is no Displacement , the work=Force X 0

=0J

then work done is 0
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THANK YOU
@SRK6

Answer 2

1) If work done by a force is positive then the displacement and impact of the force will be positive.For eg:-If we throw a ball and it goes in the same direction as we want then the force will be considered as positive
2)If work is done by a force is negative then the displacement and the impact of force will be negative.For eg:-If we throw a ball and it goes in the opposite direction then the force will be considered as positive.

Hi guys negative work for the spring would be if we pull a spring downwards then and if we release it goes upwards I. e in the opposite direction then in this case the force will be negative.

HOPE THIS ANSWER HELPS.
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