A stationary bicycle is raised off the ground, and its front wheel (m = 1.3 kg)...
A stationary bicycle is raised off the ground, and its front wheel (m = 1.3 kg) is rotating at an angular velocity of 14.2 rad/s (see the drawing). The front brake is then applied for 3.0 s, and the wheel slows down to 3.2 rad/s. Assume that all the mass of the wheel is concentrated in the rim, the radius of which is 0.34 m. The coefficient of kinetic friction between each brake pad and the rim is μk =...
A bicycle wheel with a radius of 0.40 meters has a mass of 2.25 kg mostly :concentrated near the rim. Treat the wheel as a ring of mass, I_ring = m r^2, rotating at 146 rpm (15.3 rad/s). Brakes on the rim slow the wheel to a stop at a constant angu acceleration. the angular acceleration, a, of the wheel if it is brought to rest in 5 seconds is the moment of inertia of the wheel, I, is closest...
If you lift the front wheel of a poorly maintained bicycle off the ground and then start it spinning at 0.66 rev/s, friction in the bearings causes the wheel to stop in just 13 s. If the moment of inertia of the wheel about its axle is 0.33 kg⋅m2, what is the magnitude of the frictional torque?
During a testing process, a worker in a factory mounts a bicycle wheel on a stationary stand and applies a tangential resistive force of 115 N to the tire's rim. The mass of the wheel is 1.50 kg and, for the purpose of this problem, assume that all of this mass is concentrated on the outside radius of the wheel. The diameter of the wheel is 55.0 cm. A chain passes over a sprocket that has a diameter of 9.50...
During a testing process, a worker in a factory mounts a bicycle wheel on a stationary stand and applies a tangential resistive force of 135 N to the tire's rim. The mass of the wheel is 1.50 kg and, for the purpose of this problem, assume that all of this mass is concentrated on the outside radius of the wheel. The diameter of the wheel is 50.0 cm. A chain passes over a sprocket that has a diameter of 9.00...
A bicycle wheel of mass M (assumed to be concentrated at its rim) and radius R is mounted horizontally so it may turn without friction on a vertical axle. A dart of mass mo is thrown with velocity vo as shown above and sticks in the tire. a. If the wheel is initially at rest, find its angular velocity co after the dart strikes b. In terms of the given quantities, determine the ratio: final kinetic energy of the system initial kinetic energy of...
The 50-kg flywheel has a radius of gyration about its center of mass of ko= 250mm. It rotates with a constant angular velocity of 120rev/min before the brake is applied. If the coefficient of kinetic friction between the brake pad B and the wheel’s rim is ?k= 0.5, and a force of P = 300 N is applied to the braking mechanism’s handle, determine the time required to stop the wheel. 0.5 m 1 m 0.2 m 0.3 m
a bicycle wheel with a radius of .62 m rotates with an angular speed of 25 rad/s about its axis, which is at rest. what is the linear speed of a point on the rim of the wheel
Suppose you are riding a stationary exercise bicycle, and the electronic meter indicates that the wheel is rotating at 11.3 rad/s. The wheel has a radius of 0.491 m. If you ride the bike for 25.9 min, how far would you have gone if the bike could move?
A potter's wheel having a radius 0.49 m and a moment of inertia of 12.4 kg · m2 is rotating freely at 46 rev/min. The potter can stop the wheel in 5.5 s by pressing a wet rag against the rim and exerting a radially inward force of 71 N. Find the effective coefficient of kinetic friction between the wheel and the wet rag.