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A particle starts with an initial velocity of 200 cm/s and moves with a uniform retardation
of 10 cm/s². If it describes 1500 cm in time t, what is/are the possible value(s) of f?
(b) 10 sec and 30 sec
(d) 5 sec and 10 sec
(a) 10 sec only
(c) 30 sec only

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