PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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Rotation of bar OA is controlled by the lead screw which imparts a horizontal velocity v = 31 mm/s to collar C and causes pin P to travel along with the smooth slot. The velocity of collar C is decreasing at a rate of 5 mm/s2 at the instant in question. Determine the values of r¨ and θ¨, where r = OP, if h = 245 mm and x = 185 mm.
The belt is travelling to the right at
some speed v, while the pipe is
rolling without slipping at o = 4
- 1.5 m
rad/s as shown. If the center of the
pipe G appears to an observer on
the ground to move at 2 m/s to the
left, determine the velocity of the
Belt
В
belt v.
The car A has a forward speed of 22 km/h and is accelerating at 3.1 m/s². Determine the velocity and acceleration of the car relative to
observer B, who rides in a nonrotating chair on the Ferris wheel. The angular rate Q = 3.1 rev/min of the Ferris wheel is constant.
R = 9.5 m
Answers:
VA/B( i
aA/B = (i
22=3.1 rev/min
B
35°
x
i+ i
it i
j) m/s
j) m/s²
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