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WB JEE 2017
MCQ (More than One Correct Answer)
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Two particles move in the same straight line starting at the same moment from the same point in the same direction. The first moves with constant velocity u and the second starts from rest with constant acceleration f. Then,
A
they will be at the greatest distance at the end of time $${u \over {2f}}$$ from the start
B
they will be at the greatest distance at the end of time $${u \over f}$$ from the start
C
their greatest distance is $${{{u^2}} \over {2f}}$$
D
their greatest distance is $${{{u^2}} \over f}$$
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