First slide

Rolling motion

Question

Find out angular velocity of disk. If disk is confined to roll without slipping at points of contact. Radius of disk is 5 m :

Moderate

A

$\frac{20}{3} rad / \sec$
B

3 rad/sec
C

1 rad/sec
D

4 rad/sec

Solution

$ωR - V = 10 and V + Rω = 20 \Rightarrow ω = 3 rad / s$

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