8. 1) Rods AB and BC are linked at Band have weights of 20 lb and 37 Ib, respectively. The 9-lb collar C, which is connected to BC and the spring, slides freely along the smooth vertical guide. The lengths of the rods are 4 = 1.3 ft and 2 = 3.2 ft. If the system is released from rest when 0 = 0°, determine the ratio r= wAB/ WBC of the angular velocities or rod AB and rod BC when e = 90°. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. A В k C Your Answer: Answer

8. 1) Rods AB and BC are linked at Band have weights of 20 lb and 37 Ib, respectively. The 9-lb collar C, which is connected to BC and the spring, slides freely along the smooth vertical guide. The lengths of the rods are 4 = 1.3 ft and 2 = 3.2 ft. If the system is released from rest when 0 = 0°, determine the ratio r= wAB/ WBC of the angular velocities or rod AB and rod BC when e = 90°. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. A В k C Your Answer: Answer

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

8. 2) Rods AB and BC are linked at Band have weights of 18 lb and 37 lb, respectively. The 8-lb collar C, which is connected to BC and the spring, slides freely along the smooth vertical guide. The lengths of the rods are 4 = 1.4 ft and 2 = 2.9 ft. If the system is released from rest when 0 = 0°, determine the magnitude of the angular velocity (in rad/s) of rod BC when 0 = 90°. The attached spring has spring constant k = 20 Ib/ft, and is unstretched when 0 = 0°. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g= 32.2 ft/s2. k CO Your Answer: Answer
A 15-kg uniform disk is placed in contact with the ground and a constant couple moment M = 32 N.m is applied to it as shown. The weight of link AB is negligible. If the coefficient of kinetic friction at D is 0.3, find the angular acceleration of the disk. write the answer in rad/s? but do not write the units. R = 0.25 m A Taylor Answer:
Q. The upper and lower arms of Porter governor are 0.25 m each and are pivoted 30 mm from the axis of rotation. The radius of rotation Is 130 mm. The mass of the ball and sleeve are 3 kg and 38 kg respectively. Find the effort and power of the governor.
The slender bar AB with a mass of 60 kg and a length of 4 m is secured by a cable at C, and pivoted to the back of a truck at A. When the truck starts from rest creating an acceleration of 5 m/sec² on the bar in the direction of the arrow, calculate the magnitude of the tension in the cable. Present your answer in Newtons using 3 significant figures. B. 4 m 60° A -2 m
The slender 8-kg bar AB is horizontal and at rest. The spring has an unstretched length sọ of 1 m and a spring constant of 15 N/m. the length of the bar AB is l1.Sm Find the angular velocity when e - 45° when the bar has rotate clockwise - 45° after being released. Give your answer with 2 decimals and include the sign
The link AC (6 kg) rotates in the vertical plane about the point B. A spring (k = 600 N/m, points C to D) of unstretched length 225 mm is fixed to the link as shown. If the link is released from rest in the position shown below, determine its angular velocity after it has rotated 90°. You may take the moment of inertia of the link AC about its mass center as Igac =÷ml?. 180 900 mm
Q8: The 25-kg bar BD is attached to the two light links AB and CD and moves in the vertical plane. The lower link is subjected to a clockwise torque M = 200 N. m applied through its shaft at A. If each link has an angular velocity w = 5 rad/s as it passes the horizontal position, calculate the force which the upper link exerts on the bar at D at this instant. Also find the angular acceleration of the links at this position. Ans.: F, = 234 N, a = 5.87 rad/s² CW D 300 mm 500 mm M B 600 mm
The uniform 99-lb log is supported by the two cables and used as a battering ram. If the log is released from rest in the position shown, calculate the initial tension induced in each cable immediately after release and the corresponding angular acceleration a of the cables. Assume a = 3.9 ft, b = 2.9 ft, c = 1.3 ft, e = 61°. a a C Answers: TA = i 21.6 Ib TB = i 64.9 Ib a = 4.00 rad/sec?
2. Consider the 5-1lb bar with length of 2½ feet and width of 2 inches. Small frictionless bearings are mounted to the ends, constraining the motion of the bar to the horizontal x and y slots. The bar starts at rest at positioned at 0= 45°. If an angular acceleration of 3 rad/s² is desired, what moment M must be applied to the bar? What are the reaction forces at A and B at that instant? Additional question: Does the width of the bar matter, or is it appropriate to consider the bar as a slender rod? Consider errors of less than 2% negligible.
The figure shows the cross section of a uniform 239-lb ventilator door hinged about its upper horizontal edge at O. The door is controlled by the spring-loaded cable which passes over the small pulley at A. The spring has a stiffness of 16.6 lb per foot of stretch and is undeformed when 8-0. If the door is released from rest in the horizontal position, determine the maximum angular velocity reached by the door and the corresponding angle 0. Answer: @max 4.2¹ rad/sec at 8-i
Part A The smooth surface of the vertical cam is defined in part by the curve r = (0.2 cos 0+0.3) m. The forked rod is rotating with an angular acceleration of 0 = 2 rad/s as shown in (Figure 1), and when 0 = 45°, the angular velocity is 6 = 6 rad/s. Determine the force the cam and the rod exert on the 1.8-kg roller at this instant. The attached spring has a stiffnesss k = 100 N/m and an unstretched length of 0.1 m. Express your answers in newtons using three significant figures separated by a comma. ? Neam, Frud = N Submit Request Answer Figure 1 of 1 Provide Feedback Next >
The crank AB rotates in the vertical plane with a constant clockwise angular velocity w0 . For the position shown calculate the force under the light roller C of the 10-kg slender bar BC w0=4.2 rad/s. Solve correctly please.