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.

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.

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

The strings AB and AC connect 500-g mass A to the vertical shaft BC. When the shaft rotates with a constant angular velocity of 15 rad/s, the ball has circular motion in the horizontal plane with the strings having angles of ? = 55° shown in the figure. Find the tension forces at the strings AB and AC.
1) Three small spheres are rigidly mounted to a horizontal shaft with rotates with angularvelocity omega as shown. Neglect sphere radii, ignore gravity. Spheres have masses m1, m2andm3 as shown.a. What is the angular momentum HO about O the center of the coordinates shown?b. At this instant, what is Ax , the x component of the bearing force at A to offset the dynamicimbalance? Note that you are NOT asked to find any other forces (Ay, Ox, or Oy) in interestof time.
The uniform 2-kg slender bar AB is mounted on a vertical shaft at C.A constant couple of 9 N-m is applied to the bar. Calculate the angular acceleration of the bar and the magnitude of the horizontal reaction at C at the instant when the angular velocity of the bar is 6 rad/s.
The uniform slender beam has a total mass of M and rotates freely at the indicated suspension point O. The horizontal beam section has a length of 2/3L and the vertical section has a length of 1/3L. The beam is released from the drawn position a) Draw the full-body diagram.b) Draw the kinematic diagram.c) determine the centre of gravity of the beamd) set up the necessary motion equationse) determine the angular acceleration of the beam (in g/L)f) determine the resulting force in the suspension point O. (leave the mg terms)
A torque T = 0.30 N-m is applied to a bevel gear B. Bevel gear D meshes with gear B and drives pump A. Gear B has a radius of gyration of 150 mm and a weight of 50 N, whereas gear D and the im- peller of pump A have a combined radius of gy- ration of 50 mm and a weight of 100 N. Find how many revolutions of gear B are needed to get the pump up to 200 rpm from rest. What is the power output of the pump at this speed if it is 90% efficient.
The wheel in the figure has a mass of 40 kg and a radius of rotation, in relation to its center of gravity, kG = 250 mm. Whereas there is no slip, determine the angular velocity of the rotates after it rotates 90 ° clockwise from illustrated position. The AB spring has a constant stiffness k = 100 N / m and a length in the undisturbed situation of 500 mm. Consider that the wheel is initially at rest.
A homogeneous 150-kg vertical bar AB is raised from rest at θ = 0° by means of the parallel swinging bars of negligible weight, with a constant moment M = 5 kN-m applied to the lower link at C. Determine the angular velocity and the angular acceleration of the links and the forces at A and B at the instantθ = X°. Take the angle θ = 37°.
The mass of the A gear is 10 kg and the turning radius is 200 mm. Of gear Bits mass is 3kg and the turning radius is 80 mm. When the system is stationary to gear B. Moment of 6 N.m is applied. By neglecting friction;Find the tangential force from gear B to gear A.
If the speed of the shaft, as shown in Figure 1 below, is 220 rev/min, calculate the magnitudes and orientations of the bearing reactions at A and B for the two-mass system. Given a = b = 250 mm, c = 50 mm, R1 = 60 mm, R2 = 40 mm, m1 = 2 kg, and m2 = 1.5 kg.
Determine the reactions at the pin support and the applied moment if the bar of figure (shown below) has a mass of 50 g. If θ is 15° and the angular acceleration is 20 rad/s².
The homogeneous bars have a mass as follows: bar AC has a mass of 7 kg, bar ABhas a mass of 10 kg, and rod BD has a mass of 2 kg. In the drawn position, therod AC has an angular velocity of 4 rad/s and an angular acceleration of 2 rad/s2, both clockwise.Determine the magnitude of the moment M acting on the member AC. Give all the equations neededto solve this question without calculating it
The shown spool has a mass of 100 kg and radius ofgyration of 0.3 m. For P = 70 N and ms =mk = 0.2 thespool rolls without sliding, calculate the angularacceleration of the spool