(Answered) An ice hockey puck slides along the ice atnbsp15nbspmsnbspa

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An ice hockey puck slides along the ice at 15 m/s. A hockey stick delivers an impulse of 8.4 kg⋅m/s causing the puck to move off in the opposite direction with the same speed. What is the mass of the puck?

Express your answer to two significant figures and include the appropriate units.

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