QUESTION 1 10 points S. A wheel, with radius 0.3 m and moment of inertial 54...
A 7.5-kg wheel, with a radius of 0.3 m and a radius of gyration about point O ko 0.25 7.5-kg wheel, with a m is initially at rest (to 0) when a force P 10 2t2 IN] is applied to the cord wrapped around its perimeter, where t is in seconds (see Figure ). Four seconds after the wheel stars spinning (t14 s), a constant braking moment of Mb 25 Nm is applied to the wheel. Determine the angular velocity...
Please show work. A uniform-density wheel of mass 10 kg and radius 0.33 m rotates on a low-friction axle. Starting from rest, a string wrapped around the edge exerts a constant force of 15 N for 0.81 s. (a) What is the final angular speed? 0r = 7.36 radians/s (b) What was the average angular speed? T2.98 average = radians/s (c) Through how big an angle did the wheel turn? -12.41 . radians/s (d) How much string came off the...
A wheel of mass 20 kg and radius 1.5 m is rotating counterclockwise about a shaft at 10 rad/s. A second wheel of radius 2.0 m and mass 10 kg is suddenly coupled to the first wheel. (Moment of inertial for the wheel I = mr?). If the second wheel rotates at 12 rad/s in the opposite direction as the first wheel, find the angular speed of the wheel combination.
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. A constant tangential force of 290 N applied to its edge causes the wheel to have an angular acceleration of 0.860 rad/s2. (a) What is the moment of inertia of the wheel? kg · m2 (b) What is the mass of the wheel? kg (c) If the wheel starts from rest, what is its angular velocity...
A flywheel having radius of gyration 2 m and mass 10 kg rotates at angular speed of 5 radians/s about an axis perpendicular to it through its center. Find (a) The moment of inertia. (b) The angular momentum of the flywheel. (c) The kinetic energy of rotation. 4. A flywheel having radius of gyration 2 m and mass 10 kg rotates at angular speed of 5 radians/s about an axis perpendicular to it through its center. Find (a) The moment...
A wheel rotates without friction about a stationary horizontal axis at the center of the wheel. A constant tangential force equal to 88.0 N is applied to the rim of the wheel. The wheel has radius 0.110 m . Starting from rest, the wheel has an angular speed of 13.9 rev/s after 3.28 s . What is the moment of inertia of the wheel? Express your answer with the appropriate units.
Chapter 8-Part 2 A large grinding wheel in the shape of a solid cylinder of radius 0.33 meter is free to rotate on a frictionless, vertical axle. A constant tangential force of 250 N applied to its edge causes the wheel to have an angular acceleration of 0,94 rad/s2. (a) What is the torque being applied to the wheel? (b) What is the moment of inertia of the wheel? ANS: (a) 82.5 Nm; (b) 87.8 kg-m2 A 2,000 kg Ferris...
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
In the figure, a very light rope is wrapped around a wheel o radius R = 2.0 m and does not slip. The wheel is mounted with frictionless bearings on an axle through Its center. A block of mass 14 kg is suspended from the end of the rope. When the system is released from rest it is observed that the block descends 10 m in 2.0 s. What is the moment of Inertia of the wheel?
A child pushes her friend (m = 25 kg) located at a radius r = 1.5 m on a merry-go-round (rmgr = 2.0 m, Imgr = 1000 kg*m2) with a constant force F = 90 N applied tangentially to the edge of the merry-go-round (i.e., the force is perpendicular to the radius). The merry-go-round resists spinning with a frictional force of f = 10 N acting at a radius of 1 m and a frictional torque τ = 15 N*m...