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Change in Momentum and Impulse

AP Physics 1· difficulty 1/5

A constant force of 20 N20~\text{N} acts on an object for 0.25 s0.25~\text{s}. What impulse does it deliver?

  • A

    5.0 N⋅s5.0~\text{N·s}

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  • B

    500 N⋅s500~\text{N·s}

  • C

    0.80 N⋅s0.80~\text{N·s}

  • D

    80 N⋅s80~\text{N·s}

Explanation

J=FΔt=(20)(0.25)=5.0 N⋅sJ = F \Delta t = (20)(0.25) = 5.0~\text{N·s}.

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