EP ENGR.MECH.-MOD.MASTERING ACCESS
15th Edition
ISBN: 9780134867267
Author: HIBBELER
Publisher: PEARSON CO
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Chapter 19, Problem 44P
To determine
The angular velocity of the pendulum after it has rotated
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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
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The 2.28-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 = 66°,
determine the spring constant k. For your computed value of k, what is magnitude of the angular velocity of the bar when 0 = 48°.
B
0.85 m
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2.28 kg
0.29 my
Answers:
k =
i
N/m
ω-
rad/s
1
The uniform 80 kg slender rod is at rest
in the position shown when P = 450 N is
applied. Determine the value of angular
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A
L
L2
L1
B
Chapter 19 Solutions
EP ENGR.MECH.-MOD.MASTERING ACCESS
Ch. 19 - The 60-kg wheel has a radius of gyration about its...Ch. 19 - Prob. 2FPCh. 19 - Prob. 3FPCh. 19 - Gears A and B of mass 10 kg and 50 kg have radii...Ch. 19 - The 50-kg spool is subjected to a horizontal force...Ch. 19 - Prob. 6FPCh. 19 - The rigid body (slab) has a mass m and rotates...Ch. 19 - Prob. 2PCh. 19 - Show that if a slab is rotating about a fixed axis...Ch. 19 - Prob. 21P
Ch. 19 - The two gears A and B have weights and radii of...Ch. 19 - The 30-kg gear is subjected to a force of P =...Ch. 19 - Prob. 27PCh. 19 - The turntable T of a record player has a mass of...Ch. 19 - The 10-g bullet having a velocity of 800 m/s is...Ch. 19 - Prob. 31PCh. 19 - Disk A has a weight of 20 lb. An inextensible...Ch. 19 - The 12-kg rod AB is pinned to the 40-kg disk. If...Ch. 19 - A thin rod of mass m has an angular velocity o...Ch. 19 - Prob. 41PCh. 19 - Prob. 42PCh. 19 - Prob. 44PCh. 19 - The 10-lb block is sliding on the smooth surface...Ch. 19 - Prob. 46PCh. 19 - The pendulum consists of a 15-kg solid ball and...Ch. 19 - Prob. 48PCh. 19 - The 20-kg disk strikes the step Without...Ch. 19 - The solid ball of mass m is dropped with a...Ch. 19 - Prob. 54PCh. 19 - Prob. 55PCh. 19 - Prob. 56PCh. 19 - Prob. 58PCh. 19 - The cable is subjected to a force of P = (10t2)...Ch. 19 - Prob. 2RPCh. 19 - The tire has a mass of 9 kg and a rad1us of...Ch. 19 - Prob. 4RPCh. 19 - The spool has a weight of 30 lb and a radius of...Ch. 19 - Prob. 6RPCh. 19 - Prob. 7RPCh. 19 - Prob. 8RP
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