8 in. 6 in. B PROBLEM 13.58 A 3-lb collar is attached to a spring and slides without friction along a circular rod in a horizontal plane. The spring has an undeformed length of 7 in. and a constant k = 1.5 lb/in. Knowing that the collar is in equilibrium at A and is given a slight push to get it moving, determine the velocity of the collar (a) as it passes through B, (b) as it passes through C. VB = = 11.66 ft/s VC = 15.01 ft/s

8 in. 6 in. B PROBLEM 13.58 A 3-lb collar is attached to a spring and slides without friction along a circular rod in a horizontal plane. The spring has an undeformed length of 7 in. and a constant k = 1.5 lb/in. Knowing that the collar is in equilibrium at A and is given a slight push to get it moving, determine the velocity of the collar (a) as it passes through B, (b) as it passes through C. VB = = 11.66 ft/s VC = 15.01 ft/s

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 4-kg collar A is at rest on a spring with stiffness k1 = 310 N/m, but the spring is not connected to the collar, when a force F of 220 N is applied to the cable. Knowing that A has a speed of 0.5 m/s when the upper spring is compressed 75 mm, determine the stiffness k2, in N/m ignore friction and pulley mass 450 mm peper 75 mm - 400 mm- F
B7
Problem 12.F11 Disk A rotates in a horizontal plane about a vertical axis at the constant rate. Slider B has a mass m and moves in a frictionless slot cut in the disk. The slider is attached to a spring of constant k, which is undeformed when r = 0. Knowing that the slider is released with no radial velocity in the position r=ro, draw a FBD and KD at an arbitrary distance r from O. Spring Fig. P12.F11 60
3
4. A train of mass 500 t is drawn by a locomotive of mass 50 t, which exerts a tractive effort of 75 kN, while tractive resistance is 60 N/t. Determine the time and distance required to reach a velocity of 80 km/h from rest, on level track.
a 400-kg satellite was place in a circular orbit 1500 km above the surface of the earth at this elevation the acceleration of gravity is 6.43 m/s^2 determine the kinetic energy of the satellite in kJ knowing that its orbital speed is 25.6x10^3 km/h
A system of blocks is pulled by a force P. The string connecting blocks A and B passes over a pulley whose coefficient of friction between string and pulley is 0.25. The coefficient of friction between surface and blocks is 0.20. Block A weighs 200N and block B weighs 300N. Determine, a. the minimum value of P for impending motion to the right. b. the tension connecting block B. B= 30° В A 30°
9. A thin circular rod is supported in a vertical plane by a bracket at A. Attached to the bracket and loosely wound around the rod is a spring of constant k =3 lb/ft and undeformed length equal to the arc of circle AB. An 8-oz collar C, not attached to the spring, can slide without friction along the rod. Knowing that the collar is released from rest at an angle 0 with the vertical, determine (a) the smallest value of q for which the collar will pass through Dand reach Point A, (b) the velocity of the collar as it reaches Point A. |D 12 in. A | B op
Q2) A loaded Porter governor has four links each 200 mm long and are hinged at a distance of 40 mm from the axis of rotation. The mass of each ball is 2 kg and mass of the sleeve is 20 kg. The governor sleeve begins to rise at 300 r.p.m. when the links are at an angle of 35° to the vertical. Assuming the friction force to be constant, determine the minimum and maximum speed of rotation when the inc lination of the arms to the vertical is 40°.
(2) A 5 lb ball is attached to a 3 ft long rope and it rotates in a vertical circular path at a constant tangent velocity of 30 ft/s. (a) Determine the tension in the rope when the ball is at point A. (b) Determine the tension in the rope when the ball is at point B. B 3 ft A
Show the complete solution. Put notes on steps. In the system shown, a 150 N collar-pulley assembly slides on a horizontal shaft with coefficient of kinetic friction pk = 0.10 between the collar and the shaft, and is acted upon by a force P with a magnitude of P = 261.65 N at an angle e = 31.16° as shown. Knowing that the assembly is initially at rest, what is the velocity after 3s? Also, at this instant, find the tension in the cord and the velocity of block A.
Problem 3. The system of two blocks, cable, and frictionless pulley is initially at rest. Determine the minimum magnitude of P necessary to cause motion. For this value of P, what is the magnitude of the tension in the cable? Hint: For the top block to move to the right, the bottom block must simultaneously move to the left since they are connected via the cable. 5 kg Hq=0.35 10 kg H = 0.50