## Engineering Mechanics: Statics & Dynamics (14th Edition)

Published by Pearson

# Chapter 16 - Planar Kinematics of a Rigid Body - Section 16.6 - Instantaneous Center of Zero Velocity - Problems - Page 371: 94

#### Answer

$\omega_B=6.67rad/s$

#### Work Step by Step

The required angular velocity can be determined as follows: $\omega_B=\frac{v_D}{r_B}~~~$[eq(1)] We know that $\omega_{CD}=\frac{v_D}{r_{CD}}$ $\implies 5=\frac{v_D}{0.4}$ This simplifies to: $v_D=2m/s$ We plug in the known values in eq(1) to obtain: $\omega_B=\frac{2}{0.3}$ $\implies \omega_B=6.67rad/s$

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