The 5-lb packages ride on the surface of the conveyor belt as shown in (Figure 1). The coefficient of static friction between the belt and a package is 0.45. Figure 6 in. < 1 of 1 > If the belt starts from rest and its speed increases to 2 ft/s in 2 s, determine the maximum angle so that none of the packages slip on the inclined surface AB of the belt. Express your answer in degrees to three significant figures. 0 = Submit Part B AΣo↓ vec 6= Request Answer At what angle o do the packages first begin to slip off the surface of the belt after the belt is moving at its constant speed of 2 ft/s? Neglect the size of the packages. Express your answer in degrees to three significant figures. 15| ΑΣΦ | 41 ? vec ?

The 5-lb packages ride on the surface of the conveyor belt as shown in (Figure 1). The coefficient of static friction between the belt and a package is 0.45. Figure 6 in. < 1 of 1 > If the belt starts from rest and its speed increases to 2 ft/s in 2 s, determine the maximum angle so that none of the packages slip on the inclined surface AB of the belt. Express your answer in degrees to three significant figures. 0 = Submit Part B AΣo↓ vec 6= Request Answer At what angle o do the packages first begin to slip off the surface of the belt after the belt is moving at its constant speed of 2 ft/s? Neglect the size of the packages. Express your answer in degrees to three significant figures. 15| ΑΣΦ | 41 ? vec ?

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

See similar textbooks

Similar questions

A 130-lb crate is being transported by a 175-lb hand- truck cart along the frictionless floor. The coefficients of friction between the cart and the box are μ = 0.20 and Mk = 0.15. If a force P = 45 lb is applied as shown, P determine the smallest ratio d/b for which the box will tip before it slides. Neglect the mass of the wheels of the cart. Show the complete and clear solutions including the necessary diagrams (i.e., FBD and the KD diagrams).
On a sloping road, the driver of the 1.3-tonne car, with an almost constant 300 N thrust from its engine, brakes at point A while driving at 90 km/h.a- Calculate the kinetic friction coefficient of the road to stop by traveling 50 m.b- Calculate the stopping distance (using the kinetic friction coefficient you found in part a) when you apply the brakes while going downhill at the same speed from B to A.
In an amusement park ride, riders stand against the vertical wall of a spinning cylinder. The floor falls away and the riders are held up by friction. If the radius of the cylinder is R, find the minimum number of revolutions per time necessary if the coefficient of friction between a rider and the wall is given.
A carnival ride has people stand inside a vertical cylinder with their backs to the wall. The cylinder starts spinning and the riders find that they are “stuck” to the wall and don’t slide down, even if the floor is removed. The ride has a radius of r. The person has a mass of m and is moving with a constant speed of v. The coefficient of static friction between the person and the wall is μs , and kinetic friction μk. The person is only touching the wall, not touching the floor. What is the magnitude of the acceleration of the person? In what direction does it point? The speed is constant. Why is the acceleration not zero? Briefly explain. No equations!
A 4 kg cylinder can slide along a rotating rod as shown below. The coefficient of static friction between the rod and the cylinder is u, = 0.4. Ifr 0.5 m and 0 3 rad/s, determine the maxirmum angular acceleration 0 so that the cylinder does not slide outward along the rod. r= 0.5 m #= 3 rad/s
The uniform 52-kg slender bar is initially at rest on a smooth horizontal plane when the forces are applied. If P₁ = 20 N and P₂ = 86 N, they are constant and are always perpendicular to the slender bar, determine angle (in degree) when time t = 0.40 s has passed. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. 0.75 m P₁ Your Answer: Answer 1.75 m 0.5 m P₂
The block has a mass of 140 kg and rests on a surface for which the coefficients of static and kinetic friction are Hs = 0.5 and uj. = 0.4, respectively. (Figure 1) Part A If a force F = (60t2 ) N, where t is in seconds, is applied to the cable, determine the power developed by the force when t = 5 s. Hint: First determine the time needed for the force to cause motion. Express your answer to three significant figures and include the appropriate units. µA ? P = Value Units Figure 1 of 1 Submit Request Answer Provide Feedback Next >
Under the man's pushing force P = 37.3 lb, the uniform cabinet is sliding on the ground with a constant acceleration of a. If the uniform cabinet has weight of 150 lb, and the coefficient of kinetic friction between the cabinet and the ground is uk = 0.14, determine the normal force reaction under leg A. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point and proper unit. Take g = 32.2 ft/s2. -1 ft→+–1 ft-→| P 4 ft 3.5 ft A В Your Answer: Answer units
Situation 5: Suppose the coefficient of kinetic friction between me and the plane as shown in figure is µ = 0.2 and that m = 20 kg and m² = 20 kg 53. What is the acceleration of Block A 0.605 -0.605 0.303 -0.303 60° 54. What is the tension on the chord? 80.31 N 72.12 N 78.17 N 66.71 N 1.1 m/s 52. What is mass of block B in order to move 1m up in an inclined when the block initially at rest 18.83 kg 20.41 kg 15.61 kg 25.12 kg 30° 55. What is the time required for block B to reach the top assuming it is initially 2.5 m away. 4.06 S 1.07 s 2.87 s 3.24 s
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 250-lb pipe is being towed behind a truck, as shown in the figure. If θ = 25° and the coefficient of friction of the pipe with the ground is μk = 0.25, determine: a) the tension in the cable b) the acceleration of the truck
If the uniform cabinet has weight of 200 lb, and the coefficient of static friction between the cabinet and the ground is g = 0.14, determine the minimum force P that can make the cabinet slide. Please pay attention: the numbers may change since they are randomized. Your answer must include 1 place after the decimal point and proper unit. Take g = 32.2 ft/s². Your Answer: Answer P 4 ft units A -1 ft-1 ft- 3.5 ft B