Rolling

AP Physics 1· difficulty 2/5

v

A wheel of radius 0.20 m0.20~\text{m} rolls without slipping at v=4 m/sv = 4~\text{m/s}. The angular speed of the wheel is

  • A

    0.05 rad/s0.05~\text{rad/s}

  • B

    5 rad/s5~\text{rad/s}

  • C

    20 rad/s20~\text{rad/s}

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  • D

    0.80 rad/s0.80~\text{rad/s}

Explanation

ω=v/R=4/0.20=20 rad/s\omega = v/R = 4/0.20 = 20~\text{rad/s}.

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