A cylinder is rotating about an axis that passes through the center of each circular end piece. The cylinder has a radius of 0.110 m, an angular speed of 50.0 rad/s, and a moment of inertia of 1.26 kg·m2. A brake shoe presses against the surface of the cylinder and applies a tangential frictional force to it. The frictional force reduces the angular speed of the cylinder by a factor of 3 during a time of 8.00 s. Find the magnitude of the force of friction applied by the brake shoe.

A cylinder is rotating about an axis that passes through the center of each circular end piece. The cylinder has a radius of 0.110 m, an angular speed of 50.0 rad/s, and a moment of inertia of 1.26 kg·m2. A brake shoe presses against the surface of the cylinder and applies a tangential frictional force to it. The frictional force reduces the angular speed of the cylinder by a factor of 3 during a time of 8.00 s. Find the magnitude of the force of friction applied by the brake shoe.

Similar questions

The rigid object shown is rotated about an axis perpendicular to the paper and through point P. The total kinetic energy of the object as it rotates is equal to 2.7 J. If M = 2.5 kg and L = 0.3 m, what is the angular velocity (in rad/s) of the object? Neglect the mass of the connecting rods and treat the masses as point masses.
A 20cm radius turn-table is turning with a constant angular speed ω0=33rev/min . The turn-table has a moment of inertia I=5.0kg(cm)2 relative to the axis through its center. Call this central axis the z-axis. A piece of sticky gum with mass m=50g falls straight down on the turn-table and sticks at a distance of 10cm from the center. What are the forces the tact on the system after the gum falls on the turn-table? Group of answer choices Weight of turn-table, Normal force on the turn-table, Weight of gum Weight of turn-table, Normal force on the turn-table, Weight of gum, Normal force on gum Weight of turn-table, Weight of gum Weight of gum What can you say about the net torque relative to the axis of rotation, after the gum falls on the turn-table? Group of answer choices there is a torque of 0.049 kg m2/s2, in the z direction there is a torque of 0.098 kg m2/s2, in the z direction there is no net torque in the z direction What is the angular momentum…
A playground merry-go-round of radius R = 2.20 m has a moment of inertia I = 230 kg · m2 and is rotating at 8.0 rev/min about a frictionless vertical axle. Facing the axle, a 26.0-kg child hops onto the merry-go-round and manages to sit down on the edge. What is the new angular speed of the merry-go-round (in rev/min)?
When a diver gets into a tuck position by pulling in her arms and legs, she increases her angular speed. Before she goes into the tuck position, her angular velocity is 5.5 rad/s and she has a moment of inertia of 1.5 kg · m2. Once she gets into the tuck position, her angular speed is 12.1 rad/s. Determine her moment of inertia when she is in the tuck position. Assume the net torque on her is zero. kg · m2
A potter's wheel is a uniform solid disk of radius R = 0.300 m and M = 120 kg. It is initially rotating at 12.0 rad/s. The potter can stop the wheel in 6.00 s by pressing a wet rag against the rim exerting a normal force (radially inward) of 68.0 N. The effect of pressing with the rag produces a frictional torque that brings the wheel to a stop. What is the frictional torque that acts on the wheel while it is %3D slowing down? 125 N-m O - 25.5 N m O - 50.0 N m 12.5 N m O - 10.8 N:m DII 吕口 esc F5 F6 F7 FB F2 F3 F4 @ # $ & Q E R Y D F G K X V 00
Two uniform circular disks of moment of inertia I = 3.0 × 10-3 kg · m2 about its center of mass and radius R = 0.25 m can rotate on frictionless bearings. A massless cord passes around the circular disks and is attached to a small object of weight W = 6.0 N. What is the magnitude of the angular acceleration of the circular disk?
A cylinder is rotating about an axis that passes through the center of each circular end piece. The cylinder has a radius of 0.110 m, an angular speed of 50.0 rad/s, and a moment of inertia of 1.26 kg·m2. A brake shoe presses against the surface of the cylinder and applies a tangential frictional force to it. The frictional force reduces the angular speed of the cylinder by a factor of 3 during a time of 8.00 s. Find the magnitude of the angular deceleration of the cylinder.
A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.140 rad/s2. After making 2870 revolutions, its angular speed is 157 rad/s. (a) What is the initial angular velocity of the turbine? (b) How much time elapses while the turbine is speeding up? (a) Number Units (b) Number Units
A rotating flywheel has moment of inertia 18.0 kg⋅m2 for an axis along the axle about which the wheel is rotating. Initially the flywheel has 30.0 J of kinetic energy. It is slowing down with an angular acceleration of magnitude 0.600 rev/s2. How long does it take for the rotational kinetic energy to become half its initial value, so it is 15.0 J?
A solid disk of uniform density and mass M = 0.950 kg with radius R = 0.250 m is suspended vertically and is free to rotate about its center without friction. A point object that has the same mass as the disk is placed at an angle 0 = 25.0° clockwise from the top along the rim, causing the disk to rotate. The acceleration due to gravity is g=9.81m/s². What is the angular speed wf of the disk when the point object is directly below the center of the disk? R 0.
A thin rod has a length of 0.537 m and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. The rod has an angular velocity of 0.778 rad/s and a moment of inertia of 1.10 x 10³ kg-m². A bug standing on the axis decides to crawl out to the other end of the rod. When the bug (whose mass is 5 x 10-3 kg) gets where it's going, what is the change in the angular velocity of the rod?
When a diver gets into a tuck position by pulling in her arms and legs, she increases her angular speed. Before she goes into the tuck position, her angular velocity is 5.5 rad/s and she has a moment of inertia of 1.7 kg · m². Once she gets into the tuck position, her angular speed is 15.1 rad/s. Determine her moment of inertia when she is in the tuck position. Assume the net torque on her is zero. kg · m2