PEARSON ETEXT ENGINEERING MECH & STATS
PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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Chapter 19, Problem 44P
To determine

The angular velocity of the pendulum after it has rotated 90° .

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The 1.2-kg uniform slender bar rotates freely about a horizontal axis through O. The system is released from rest when it is in the horizontal position 0 = 0 where the spring is unstretched. If the bar is observed to momentarily stop in the position 0 = 50° determine the spring constant k. For your computed value of k, what is the angular velocity of the bar when 0 = 35°? 0.6 m 0.6 m 1.2 kg 0.2 m www
The uniform 80 kg slender rod is at rest in the position shown when P = 450 N is applied. Determine the value of angular velocity, w2 the rod if L1 = 5.5 m and L2 = 6.5 m. A L L2 L1 B
The pendulum illustrated in the figure is composed of an AB 2 kg and a 5 kg disc. The pendulum is released from rest in the shown position and falls 0.3 m without undergoing any rotation until the end A reaches the hook S, which starts to provide a permanent connection. Determine the angular velocity of the pendulum after turning 90 °. Treat the weight of the pendulum during impact as a non-impulsive force.

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