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A particle is thrown vertically upwards....

A particle is thrown vertically upwards. The correct graph between its speed (v) and time (t) is given by (neglecting air resistance)

A

B

C

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The correct Answer is:
C
During upward motion, velocity of particle at time t is given by, v=u-gti.e., velocity decreases linearly with time and finally becomes zero. During downward motion, v = u + gt = gt In this case, the velocity increases with time linearly.
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