physics

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An ice hockey puck slides along the ice at 12m/s. A hockey stick delivers an impulse of 4.0kg*m/s causing the puck to move off in the opposite direction with the same speed.

What is mass of puck?

  • physics -

    look at the units!

    (__kg)(12m/s)=4.0kg*m/s

  • physics -

    .16667

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