Disk A has a mass mA = 3.5 kg, a radius rA = 255 mm, and an initial angularvelocity wOA = 300 rpm clockwise. Disk B has a mass mB = 1.8 kg, a radius rB =150 mm, and is at rest when it comes into contact with disk A. Knowing that µk :0.33 between the disks and neglecting rolling friction, determine the moment ofreaction on the support at C, in N-m.=00BACTATB

Disk A has mass mA = 3.5 kg, radius rA = 255 mm, and initial angular velocity , ωoA = 300 rpm…

Disk A has a mass mA = 3.5 kg, a radius rA = 255 mm, and an velocity wOA = 300 rpm clockwise. Disk B has a mass mB = 1. 150 mm, and is at rest when it comes into contact with disk A. 0.33 between the disks and neglecting rolling friction, determin reaction on the support at C, in N-m.

Disk A has a mass mA = 3.5 kg, a radius rA = 255 mm, and an velocity wOA = 300 rpm clockwise. Disk B has a mass mB = 1. 150 mm, and is at rest when it comes into contact with disk A. 0.33 between the disks and neglecting rolling friction, determin reaction on the support at C, in N-m.

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

Two disks A and B, of mass m 1 kg each and of radius 10 cm, are placed on a horizontal table. The disk A is launched in translation with a speed of 10 m/s along the y axis, B is at rest. The coefficient of kinetic friction between the disks is 0.5. The line of impact is at an angle of 60° with the x-axis. The moment of inertia of each disk around its center of mass is I = 1₂ = 0.005 kg.m². The coefficient of restitution between the two disks is e=0.6. a) Determine the velocities of the centers of the two disks, just after the impact. b) Calculate the angular velocities of the disks, just after the impact. c) Calculate the energy loss during the impact.
A 1.6-kg tube AB can slide freely on rod DE which in turn can rotate freely in a horizontal plane. Initially the assembly is rotating with an angular velocity of magnitude w = 5 rad/s and the tube is held in position by a cord. The moment of inertia of the rod and bracket about the vertical axis of rotation is 0.30 kg.m2 and the centroidal moment of inertia of the tube about a vertical axis is 0.0025 kg.m2If the cord suddenly breaks, determine (a) the angular velocity of the assembly after the tube has moved to end E, (b) the energy lost during the plastic impact at E.
In the helicopter shown; a vertical tail propeller is used to pre- vent rotation of the cab as the speed of the main blades is changed. Assuming that the tail propeller is not operating determine the final angular velocity of the cab after the speed of the main blades has been changed from I80 to 240 rpm. (The speed of the main blades is measured relative to the cab, and the cab has a centroidal moment of inertia of 650 lb.ft.s2. Each of the four main blades is assumed to be a slender rod 14 ft weighing 55 lb.)
The total mass of the Baja car and driver, including the wheels, is 250 kg. Each pair of 58-cm radius wheels and the axle has a total mass of 20 kg and a mass moment of inertia of 2.9 kg·m2 . The center of gravity of the driver and Baja body (not including the wheels) is located x = 0.70 m from the rear axle A and y = 0.55 m from the ground. The wheelbase is L = 1.60 m. If the engine exerts a torque of 500 N·m on the rear axle, what is the car’s acceleration?
A 7.5 kg disk A radius of 0.6 m initially rotating clockwise at 300 rev/min is engaged with an 8.5 kg disk B of radius 0.4 m initially rotating counter clockwise at 700 rev/min, where the moment of inertia of a disk is given as I=1/2mr^2. Determine their combined angular speed (in rpm) and direction after the meshing of the two disks.
A 7.5-kg disk A radius 0.6 m initially rotating clockwise at 300 rev/min is engaged with an 8.5-kg disk B radius 0.4 m initially rotating counter-clockwise at 700 rev/min, where the moment of inertia of a disk is given as I=1/2mr^2. Determine their combined angular speed (in rpm) and direction of rotation after the meshing of the two disk.
A 2500-kg satellite is 2.4 m high and has octagonal bases of sides 1.2 m. The coordinate axes shown are the principal centroidal axes of inertia of the satellite, and its radii of gyration are kx = kz= 0.90 m and ky = 0.98 m. The satellite is equipped with a main 500-N thruster E and four 20-N thrusters A, B, C, and D, that can expel fuel in the positive y direction. The satellite is spinning at the rate of 36 rev/h about its axis of symmetry Gy, which maintains a fixed direction in space, when thrusters A and B are activated for 2 s. Determine (a) the precession axis of the satellite, (b) its rate of precession, (c) its rate of spin.
A flywheel is a mechanical device used to store rotational kinetic energy for later use. Consider a flywheel in the form of a uniform solid cylinder rotating around its axis, with moment of inertia I = 1/2 mr2. 1) Consider a scenario in which the flywheel described in part (a) (r1 = 0.55 m, mass m1 = 16 kg, v = 45 m/s at the rim) is spinning freely at its maximum speed, when a second flywheel of radius r2 = 2.8 m and mass m2 = 11 kg is coaxially dropped from rest onto it and sticks to it, so that they then rotate together as a single body. Calculate the energy, in joules, that is now stored in the wheel. 2) Return now to the flywheel of part (a), with mass m1, radius r1, and speed v at its rim. Imagine the flywheel delivers one third of its stored kinetic energy to car, initially at rest, leaving it with a speed vcar. Enter an expression for the mass of the car, in terms of the quantities defined here.
A 10 kg , 0.5 m radius wheel is to rotate from rest to a speed of 100 rad/s in 5 s. Determine the tangential force ( N ) created at the rim of the wheel.
While the system shown is in equilibrium, a counter-clockwise torque T =T0sin(ωt) N-m(with T0 = 226.6 and ω=7) is applied to teh disk. What is the disk angular speed ω0 = ? in rad/s at time t = 4.2 sec? ( I = 0.2 kg.m2, b = 7.8 N-m-s/r, k = 1,504 N/m, r = 0.52m )
The pendulum has a mass of 8.8 kg, a centre of gravity at G, and a radius of gyration of 0.31 m about the fixed pin support at O. At what position (in degrees) must the pendulum by released from rest so that its angular acceleration is 18.6 (clockwise) at that instant? Take = 0.25 m. The motion occurs in a vertical plane and friction is negligible. Choose the correct answer. 43.2 36.7 34.6 48.4 41.1
Two uniform cylinders, each of mass m = 6 kg and radius r = 125 mm, are connected by a belt as shown. If the system is released from rest when t = 0, determine (a ) the velocity of the center of cylinder B at t=3s, ( b) the tension in the portion of belt connecting the two cylinders.