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A body moves under a variable force. Fo...

A body moves under a variable force. For the body a plot of velocity versus time is shown in figure. The correct statement is

A

In moving from C to D, work done by the force on the body is positive

B

In moving from B to C, work done by the force on the body is positive

C

In moving from A to B, the body does work on the system

D

In moving from O to A, work done by the force on the body is negative.

Text Solution

Verified by Experts

The correct Answer is:
A
In moving from C to D, slope of graph is negative which means acceleration (force) is negative and displacement is also negative as the area under curve CD lies below the time axis. Hence, work done by the force on the body is positive.
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