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Posted by on Monday, September 12, 2011 at 7:53pm.

After falling from rest from a height of 30 m, a 0.49 kg ball rebounds upward, reaching a height of 20 m. If the contact between ball and ground lasted 2.5 ms, what average force was exerted on the ball?

  • Physics - , Saturday, June 9, 2012 at 8:28pm

    el que escribio esto es del GB xDDDDDd

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