science

solved a ball is dropped from the top of a tower 100 meter high. simultaneously another ball is thrown upwards from ground with a speed of 50 m/s . after what time do they cross each other.

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asked by pinki
  1. h1 = -1/2 g t^2 + 100

    h2 = -1/2 g t^2 + 50 t

    the balls cross when h1 equals h2

    looks like 2 sec

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    posted by scott
  2. question cant be solved untill its is clear whether its a free falling case or not.

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