Solve this question fast with step by step solution. This question is from motion in a straight line
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Option (B) is correct.
Here we have to find displacement which is given by area of velocity -time graph. Here from 15s to 25s ,displacement = 1/2*15*10 = 75m and again from 25s to 35s, displacement = 75m but opposite in direction( or negative in sign) . Therefore on their addition, we get result ....displacement = 0.
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