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Posted by on Monday, October 14, 2013 at 6:01pm.

A rock with a mass of 0.3 kg has a kinetic energy of 43.2 j when thrown. What was the speed at which it was thrown?

  • Science - , Wednesday, October 16, 2013 at 4:38pm

    KE = 0.5m*V^2 = 43.2 J.
    m = 0.3 kg, solve for V,

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