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March 25, 2017

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A hockey puck has a mass of 0.126 kg and is at rest. A hockey player makes a shot, exerting a constant force of 32.5 N on the puck for 0.16 s. With what speed does it head toward the goal?

  • physics - ,

    F=ma=mΔv/Δt=m(v2-v1)/Δt
    As v1=0
    v2=FΔt/m=32.5x0.16/0.126=41.3m/s

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