Physics, asked by shlokseengal, 6 months ago

distinguish between posotive and negative work . when you lift an object , two forces act on it. identify these forces. which one of these two does (a) positive work , (b) negative work . justify your answer.​

Answers

Answered by arunajyothik15
2

Answer:

positive work of energy plays a role while we are going upstairs

negative work of energy plays a role while we are coming down

Answered by devraj7766
3

the direction for displacement and force determines if it is positive or negative

Explanation:

when you lift an object you are applying force in upward direction however there is also a force of gravity acting downwards

your force does a positive work because it is in the direction of displacement

however the force acting on body due to gravity does a negative work because displacement and force are in opposite direction

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