The centre of a wheel rolling on a plane surface moves with a speed \(v_0\). A particle on the rim of the…

The centre of a wheel rolling on a plane surface moves with a speed \(v_0\). A particle on the rim of the wheel at the same level as the centre will be moving at a speed
  1. 0
  2. \(v_0\)
  3. \(\sqrt{2} v_0\)
  4. \(2 v_0\)

Solution

According to question, speed of the centre of wheel is \(v_0\).
Particle is situated on the rim of wheel as shown in Fig. (ii). \(\begin{aligned} \therefore \quad v=r \omega & =\sqrt{(O P)^2+(O M)^2} \cdot \omega=\sqrt{R^2+R^2} \cdot \omega \\ v & =\sqrt{2} R \omega \quad \end{aligned}\) But \(v_0=R \omega\) ...(ii) From Eqs. (i) and (ii), we get \(v=\sqrt{2} v_0\)

Asked in: AP EAMCET 2020 (21 Sep Shift 2)

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