Beginning from rest when 0= 10°, the collar slides without friction down the fixed bar. Detemmine the speed and the rate at which the speed is changing of the slider, and the normal force exerted on bar (a) when 0= 20° and (b) when 0= 90°.

Beginning from rest when 0= 10°, the collar slides without friction down the fixed bar. Detemmine the speed and the rate at which the speed is changing of the slider, and the normal force exerted on bar (a) when 0= 20° and (b) when 0= 90°.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.79P: The coefficient of rolling resistance between the 30-kg lawn roller and the ground is r=0.1. (a)...

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Concept explainers

Free undamped vibrations

Whenever an object/system displaces in either side of its equilibrium position with the help of an external/internal means, then the object/system moves regularly or randomly on both sides of its equilibrium position. This motion is called vibration. Generally, there are three types of vibration: longitudinal vibration, transverse vibration, and torsional vibration.

Question

Beginning from rest when 0= 10°, the collar slides without friction down the
fixed bar. Detemmine the speed and the rate at which the speed is changing of the
slider, and the normal force exerted on bar (a) when 0= 20° and (b) when 0= 90°.
R- 30 m
m=30 kg
Vertical plane

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