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A 0.10 kilogram ball dropped vertically from a height of 1.0 meter above the floor bounces back to a height of 0.80 meter. The mechanical energy lost by the ball as it bounces is aprox.

a. 0.080 J
b. 0.20 J
c. 0.30 J
d. 0.78 J

  • physics - ,

    =0.1•9.8(1-0.8)=0.78 J

  • physics - ,

    B.) (.10kg)(10 m/s^2)(0.20m) = .20J

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