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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 5 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
18–30. Motor M exerts a constant force of P = 750 N on the rope. If the 100-kg post is at rest when u = 0°, determine the angular velocity of the post at the instant u = 60°. Neglect the mass of the pulley and its size, and consider the post as a slender rod.
18–33.  The two 2-kg gears A and B are attached to the
ends of a 3-kg slender bar. The gears roll within the fixed ring gear C, which lies in the horizontal plane. If a 10-N # m
torque is applied to the center of the bar as shown, determine the number of revolutions the bar must rotate starting from rest in order for it to have an angular velocity of vAB = 20 rad>s. For the calculation, assume the gears can be approximated by thin disks. What is the result if the gears lie in the vertical plane?
Â

MÂ Â Â PÂ = 750 NÂ Â Â Â C
Â
Â
Â
A
4 m
Â
Â
3 m
Â
u
B
Â
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