If the brake ABC is applied such that the magnitude of force P varies with time as shown, determine the time needed to stop the disk. The coefficient of kinetic friction at B is 40.4 Neglect the thickness of the brake

If the brake ABC is applied such that the magnitude of force P varies with time as shown, determine the time needed to stop the disk. The coefficient of kinetic friction at B is 40.4 Neglect the thickness of the brake

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 7.58P: The screw of the carjack has a pitch of 0.1 in. and a mean radius of 0.175 in. Note that the ends of...

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Question

Need only a handwritten solution only (not a typed one).

The 8 kg disk has an angular velocity of w = 15 rad/s.
(Figure 1)
Figure
400 mm
t=
01
500 mm
200 mm-
Value
HAO?
B
Submit Request Answer
Units
500 mm
C
P (N)
5
- Part A
If the brake ABC is applied such that the magnitude of force P varies with time as shown, determine the time needed to stop the disk. The
coefficient of kinetic friction at B is = 0.4 Neglect the thickness of the brake
Express your answer to three significant figures and include the appropriate units.
2
< 1 of 1 >
-t(s)
4

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1