R15-8. The small cylinder C has a mass of 10 kg and isattached to the end of a rod whose mass may be neglected.If the frame is subjected to a couple M = (87 + 5) N• m,where t is in seconds, and the cylinder is subjected to a forceof 60 N, which is always directed as shown, determine thespeed of the cylinder when 1 = 2 s. The cylinder has a speedvo = 2 m/s when t = 0.60 N0.75 mM = (8² + 5) N-m

Answered: Image /qna-images/answer/47a399a3-d136-46d6-9ca6-e91338e9a9b7.jpg

Answered: R15-8. The small cylinder C has a mass…

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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If the rod of negligible mass is subjected to a couple moment of M = (30t^2) N⋅⋅m, and the engine of the car supplies a traction force of F = (15t) N to the wheels, where t is in seconds, determine the speed of the car at the instant t = 12.5 s. The car starts from rest. The total weight of the car and rider is 1.5 kN. Neglect the size of the car.
A man having the mass of 75 kg sits in the chair which is pin-connected to the frame BC. If the man isalways seated in an upright position, determine the horizontal and vertical reactions of the chair on theman at the instant Θ = 45 ̊. At this instant he has a speed of 6 m/s, which is increasing at 0.5 m/s2
The smooth surface of the vertical cam is defined in part by the curve r =(0.2 cos θ + 0.3) m. The forked rod is rotating with an angular acceleration of 2rad/s^2, and when θ = 45° the angular velocity is 6 rad/s. Determine the force the camand the rod exert on the 2-kg roller at this instant. The attached spring has a stiffnessk = 100 N/m and an unstretched length of 0.1 m.
14-76. The 4-kg smooth collar has a speed of 3 m/ s when it is at s = 0. Determine the maximum distance s it travels before it stops momentarily. The spring has an unstretched length of l m
The smooth particle has a mass of 80 g. It is attached to an elastic cord extending from O to P and due to the slotted arm guide moves along the horizontal circular path r=(0.8sinθ)m. If the cord has a stiffness k= 24 N/m and an unstretched length of 0.25 m, determine the force of the guide on the particle when θ=60. The guide has a constant angular velocity θ˙=5rad/s
P13-2. The 10-kg block is subjected to the forces shown.In each case, determine its velocity at s=8m if v=3m/sat s=0. Motion occurs to the right.
The spring-held follower AB has a mass of 0.5 kg and moves back andforth as its end rolls on the contoured surface of the cam, where r = 0.15 m and z =(0.02 cos 2θ) m. If the cam is rotating at a constant rate of 30 rad/s, determine theforce component Fz at the end A of the follower when θ = 30°. The spring isuncompressed when θ = 90°. Neglect friction at the bearing C.
The 7-kg smooth cylinder is supported by the spring having a stiffness of kab = 120 N/m. Determine the velocity of the cylinder when it moves downward s = 0.5 m from its equilibrium position, which is caused by the application of tthe force F =60 N.
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The 10-lb block A travels to the right at va= 2 ft/sec at the instant shown. If the coefficient pf kinetuc friction is uk = 0.2 between the surface and A, determine the velocity of A when it has moved 4ft Block B has a weight of 20 lb. (Unit in m/sec)
If the motor draws in the cable with an acceleration of 3 m/s^2, determine the reactions at the supports A and B. The beam has a uniform mass of 30 kg/m, and the crate has a mass of 200 kg. Neglect the mass of the motor and pulleys.
14-67. The assembly consists of two blocks A and B which have a mass of 20 kg and 30 kg, respectively. Determine the speed of each block when B descends 1.5 m. TI1c blocks are released from rest. Neglect the mass of the pulleys and cords

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