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Question

Study the following v-t graphs in column I carefully and match appropriately with the statements given in Column II. Assume that motion takes place from time 0 to T.

A
1,4,10,12
Solution
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Correct option is A. 1,4,10,12
a. Area of v-t graph lies below the time axis, so displacement is negative, but slope is positive, so acceleration is positive.
b. Area of v-t graph lies above the time axis, so displacement is positive, and slope is positive, so acceleration is also positive.
c. Displacement is zero, because half area is above time axis and half below. Slope is negative, so acceleration is negative.
d. Area of v-t graph lies above the time axis, so displacement is positive, and slop is negative, so acceleration is also negative.

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