Physics

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A 0.168kg hockey puck slides at 11.4m/s. what is the work needed to stop the puck?

  • Physics -

    The work is equal to the change of kinetic energy
    W=ΔK=K2-K1= 0-(mv^2)/2
    W=0.168•(11.4)^2/2=10.9 J.

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