13–9. The conveyor belt is moving at 4 m/s. If thecoefficient of static friction between the conveyor andthe 10-kg package B is µ, = 0.2, determine the shortesttime the belt can stop so that the package does not slideon the belt.13–10. The conveyor belt is designed to transport packagesof various weights. Each 10-kg package has a coefficient ofkinetic friction Hk = 0.15. If the speed of the conveyor is5 m/s, and then it suddenly stops, determine the distance thepackage will slide on the belt before coming to rest.

13-9. Given data: The velocity of belt, v = 4 m/s. The mass of package, m = 10 kg. The friction…

Answered: 13–9. The conveyor belt is moving at 4…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The 11-lb block has a velocity of 3.83 ft/s when the force of F = (257.6t2) lb·ft/sec2 is applied. Determine the acceleration of the block when t = 2.08 s. The coefficient of kinetic friction at the surface is μk = 0.21. Answer is in ft/sec2.
The 2-kg spool S fits loosely on the inclined rod for which the coefficient of static friction is μ = 0.28. (a) If the spool is located 0.25 m from A, determine the maximum constant speed the spool can have so that it does not slip up the rod. Express your answer to three significant figures and include the appropriate units.
The coefficient of friction between all surfaces is us = 0.4 and μK = 0.3. The mass of A is 11 kg and the mass of B is 36 kg. Assume the pulley is mass less and frictionless. Determine the smallest force P required to keep the system moving. P A A B
Determine the maximum and the minimum values of weight W which may be applied without causing the 25-kg block to slip. The coefficient of static friction between the block and the plane is μs= 0.2, and between the rope and the drum D is μ′s= 0.3.
2. The 10-Ib block has a speed of 4 ft's when the force of F= (8t?) Ib is applied. Determine the velocity of the block when t= 2 s. The coefficient of kinetic friction at the surface is = 0.2. v = 4 ft/s F= (8°) lb
2. The car has a mass of 1.6 Mg and center of mass at G. If the coefficient of static friction between the shoulder of the road and the tires is µs = 0.4, determine the greatest slope the shoulder can have without causing the car to slip or tip over if the car travels along the shoulder at constant velocity. 2.5 ft 5 ft 4 ll
Q14. As shown in the image below, the 20-kg box is pulled up the inclined plane with a constant velocity of 4.7 m/s. If the coefficient of kinetic friction between the box and the inclined plane is µ = 0.1, determine the power of force F. Please pay attention: the numbers may change since they are randomized. Your answer must include 1 place after the decimal point, and proper SI unit. Take g = 9.81 m/s². F Your Answer: Answer 30° units
The truck is traveling at 18 km/h when the trailer coupling at A fails. If the trailer has a mass of 255 kg and it travels a distance of 40 m before coming to a stop, determine the constant horizontal force F created by bearing friction that causes the trailer to stop (in N). NL (O) == O F
Question: The 250-kg crate rests on the ground for which the coefficients of static and kinetic friction are μs = 0.5 and μk = 0.4, respectively. The winch delivers a horizontal towing force T to its cable at A which varies as shown in the graph. Originally the tension in the cable is zero Part A) Determine the speed of the crate when t = 3.9 s. Hint: First determine the force needed to begin moving the crate. Express your answer to three significant figures and include the appropriate units.
The 200-lb man walks up the inclined plank of negligible weight. Thecoefficients of static friction at A and B are 0.3 and 0.2, respectively.Determine the distance x at which the plank would begin to slide.
If the force exerted on cable AB by the motor is F = ( 110 t 3/2 ) N, where tt is in seconds, determine the 55-kg crate's velocity when ttt = 5 s . The coefficients of static and kinetic friction between the crate and the ground are μs = 0.37 and μk = 0.29, respectively. Initially the crate is at rest. (Figure 1)

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