Question 5 [3/28]: The sliders A and B are connected by a light rigid bar of length /= 20 in. and move withnegligible friction in the slots, both of which lie in a horizontal plane. For the position where XA = 16 in., thevelocity of A is VA = 3 ft/sec to the right. Determine the acceleration of each slider and the force in the bar at thisinstant.B6 lb20"4 lbAP = 10 lb

Answer Explanation:Step 1: Step 2: Step 3: Step 4:

Answered: Question 5 [3/28]: The sliders A and B…

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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5. The coefficient of static friction between the flat bed of the truck and the crate it carries as shown in Figure 5 is µ, = 0.30. (a) Set up the appropriate global axes system and draw the free body, kinematic and kinetic diagrams of the crate on the bed. (b) Determine the maximum acceleration amax and hence the maximum velocity Vmax which the truck can acquire from rest in a distance of 50m up a 10-percent grade if the crate is not to slip backward. (c) If the truck was travelling on a horizontal road with the maximum speed you have determined in part (a) above, would the minimum stopping distance be different than 50 m as given above if the crate is not to slip? Give a brief engineering explanation in support of your answer. 10 Figure 5
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4. A slender, rigid bar of mass m and length I is pinned to a massless collar as shown in the figure below. The collar and bar are initially stationary and slide on a frictionless rod. A force F is applied to the collar in the horizontal direction. Determine the acceleration of the collar at the instant that this force is applied. P Fight
1. (bold type indicates a vector) An object of mass m = 10 kg may rotate in a vertical plane about the fixed point P under the action of gravity. The distance d from the point P to the center of mass C is d = 0.5 m. The moment of inertia Ie about the center of mass C is unknown. The object starts at rest in the position shown and is then released. At the instant of release the acceleration of the center of mass is measured to be a, = (-5 m/sec²)j (i.e., downward). Use the given information to determine the moment of inertià I, about the center of mass. Use g = 10 m/sec?. gravity w go P (f ixed)
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EXERCISE 3.40 Collar C slides relative to the curved rod at a constant speed u. The rotation rate about bearing axis AB is constant at Q. Determine the acceleration of the collar in terms of the angle locating the collar. Also derive expressions for the dynamic forces exerted on the collar by the rod and the tangential force required to hold u constant. Gravity may be assumed to be unimportant. (Hint: attach frame xyz to the curved rod, make the tangent point of AB and circle as its origin. Axis x is horizontal and rightward. y axis is vertical and downward.) 225
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