Rolling

AP Physics 1· difficulty 1/5

A wheel of radius 0.30 m0.30~\text{m} rolls without slipping at 6.0 m/s6.0~\text{m/s}. Its angular speed is

  • A

    2.0 rad/s2.0~\text{rad/s}

  • B

    20 rad/s20~\text{rad/s}

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  • C

    18 rad/s18~\text{rad/s}

  • D

    1.8 rad/s1.8~\text{rad/s}

Explanation

ω=v/R=6.0/0.30=20 rad/s\omega = v/R = 6.0/0.30 = 20~\text{rad/s}.

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