Answer is option a.... explain the process...
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The answer is (A).
From C to D, the body is traveling in the reverse (-ve x direction).
The slope of v - t graph is negative. So acceleration is negative.
So force is negative. It means that the force is acting in the negative x direction.
So product of force and displacement is positive as both are negative (ie., in the same direction). So work done by the force on the body is positive.
From C to D, the body is traveling in the reverse (-ve x direction).
The slope of v - t graph is negative. So acceleration is negative.
So force is negative. It means that the force is acting in the negative x direction.
So product of force and displacement is positive as both are negative (ie., in the same direction). So work done by the force on the body is positive.
kvnmurty:
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hi
in which class you are
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