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4 February, 07:08

You drop a 6.0x10^-2 kg ball from height of 1.0m above hard flat surface. Ball strikes surface and energy decreases by 0.14J, then bounces upward. How much kinetic energy does the ball have just after it bounces off the flat surface?

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  1. 4 February, 09:27
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    If you drop a 6.0x10^-2 kg ball from height of 1.0m above hard flat surface, and a fter the ball had bounce off the flat surface, the kinetic energy of the ball would be mgh - 0.14 = 0.45.
  2. 4 February, 10:27
    0
    The answer is

    Mgh-0.14 = 0.45
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