CBSE Class 11-science Answered
A ball is dropped by a boy A from the top of a tall building. An observer B inn some floor observes that the ball takes 0.1 second to cross the height of the window (through which he is watching) of height 1.55m.If the total time taken by the ball to travel from the top to bottom of the building is 3 seconds, what is the height of the top portion of the window from the ground.
Asked by aruni_maiyer | 08 Mar, 2011, 05:49: PM
Expert Answer
Answered by | 13 Apr, 2011, 09:22: AM
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