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If a body losses half of it's velocity on penetrating 3 cm in a wooden block, then how much will it penetrate more before coming to rest?
(a) 1 cm
(b) 2 cm
(c) 3 cm
(d) 4 cm
Updated Tue, 11 Sep 2018 02:29 pm


A boat which has a speed of 5 km/hr is still water crosses a river of width 1 km along the shortest path in 15 mins. The velocity of the river water in km/hr?
Updated Wed, 05 Sep 2018 03:05 pm