PhysicsA heavy stone is thrown from a cliff of height ‘h’ with a speed ‘v’. The stone will hit the ground with maximum speed if it is thrown

A heavy stone is thrown from a cliff of height 'h' with a speed 'v'. The stone will hit the ground with maximum speed if it is thrown

  1. A

    Vertically downward

  2. B

    Vertically upward

  3. C

    Horizontally

  4. D

    speed does not depend on initial direction

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    Solution:

    when a heavy stone is thrown from a cliff of height h, with speed v

               

    It will travel with a=g(in downward direction) and reach the ground with same speed v| because v12v2=+2gh in all cases

    So we claim that maximum speed it attained is independent of direction in which it  is thrown.    

    Option (d) is correctly concluding the task.

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