A ball is thrown vertically upwards with a velocity of 20m/s from the top of a multistorey building. The height of the point from where the ball is thrown is 25m from the ground.
(1) How high the ball will rise?
(2) How long it will be before the ball hits the ground? (Take g=10m/s2
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the ball will rise 20m up .....from the point of projection...means from the top of building..... and if the height of building is included then the net height will be 25+20=45m
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