In Figure, a constant horizontal force Fapp of magnitude 10 N is applied to a wheel of mass 10O kg and radius 0.30 m. The wheel rolls smoothly on the horizontal surface, and the acceleration of its center of mass has magnitude 0.60 m/s?. What is the frictional force on the wheel (in N)? app Option 1 Option 2 Option 3 Option 4 Option 5 (+4.01) (-4.0f) (+2.01) (-2.01) (-5.06) a) Option5 b) Option4 c) Option1 d) Option2

In Figure, a constant horizontal force Fapp of magnitude 10 N is applied to a wheel of mass 10O kg and radius 0.30 m. The wheel rolls smoothly on the horizontal surface, and the acceleration of its center of mass has magnitude 0.60 m/s?. What is the frictional force on the wheel (in N)? app Option 1 Option 2 Option 3 Option 4 Option 5 (+4.01) (-4.0f) (+2.01) (-2.01) (-5.06) a) Option5 b) Option4 c) Option1 d) Option2

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 76P: The precession angular velocity of a gyroscope is 1.0 rad/s. If the mass of the rotating disk is 0.4...

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The precession angular velocity of a gyroscope is 1.0 rad/s. If the mass of the rotating disk is 0.4 kg and its radius is 30 cm, as well as the distance from the center of mass to the pivot, what is the rotation rate in rev/s of the disk?
Which of the entries in Table 10.2 applies to finding the moment of inertia (a) of a long, straight sewer pipe rotating about its axis of symmetry? (b) Of an embroidery hoop rotating about an axis through its center and perpendicular to its plane? (c) Of a uniform door turning on its hinges? (d) Of a coin turning about an axis through its center and perpendicular to its faces?
A centrifuge rotor rotating at 9500 rpmrpm is shut off and is eventually brought uniformly to rest by a frictional torque of 2.28 m⋅N If the mass of the rotor is 4.19 kg and it can be approximated as a solid cylinder of radius 0.0490 m , through how many revolutions will the rotor turn before coming to rest? How long will it take?
A cylinder of mass M and radius R is pulled by a constant force of magnitude Fapplied at the top horizontally. The cylinder rolls smoothly on the horizontal surface. Assume that M=10 kg, R=0.10 m, F=12 N, and note that the rotational inertia of the cylinder about its axis is 1/2MR^2 (a) Find the magnitude of the acceleration of thic center of mass of the cylinder (please input the numerical value in unit of m/s) (b) Find the magnitude of the angular acceleration of the contact point between the cylinder and the surface about the axis of the cylinder (please input the numerical value in unit of rad/s). (c) Find the magnitude of the frictional force acting on the cylinder (please input the numerical value in unit of N).
A 255-lbf block is suspended from an inextensible cable which is wrapped around a drum of 1.75-ft radius rigidly attached to a flywheel. The drum and flywheel have a combined centroidal moment of inertiaI̅= 12 lb . ft . s 2 . At the instant shown, the velocity of the block is unknown directed downward. Knowing that the bearing at A is poorly lubricated and that the bearing friction is equivalent to a couple M of magnitude 65 lb .ft, determine the velocity of the block before it has moved 3.5 ft downward if at S2 speed is 13.5ft/s. (The final answer should be in two decimal places with correct units)
A yo-yo is constructed of two brass disks whose thickness b is 8.5mm and whose radius R is 3.5cm, joined by a short axle whose radius Ro is 3.2mm. A. What is the rotational inertia about its central axis? Neglect rotational inertia of the axle. The density p is 8400kg/m^3. B. A string of length l=1.1m and of negligible thickness is wound on the axle. What is the linear acceleration of the yo-yo as it rolls down the string from the rest?
the knee extensors insert on the tibia at an angle of 30 degrees (from the longitudinal axis of the tibia), at a distance of 3 cm from the axis of rotation at the knee. how much force must the knee extensors exert to produce an angular acceleration at the knee of 1 rad/s^2. given a mass of the lower leg and foot of 8.8 kg and a radius of rotation of 23 cm?
A uniform, solid sphere of radius 6.00 cm and mass 4.50 kg starts with a purely translational speed of 2.50 m/s at the top of an inclined plane. The surface of the incline is 2.00 m long, and is tilted at an angle of 32.0∘ with respect to the horizontal. Assuming the sphere rolls without slipping down the incline, calculate the sphere's final translational speed v2 at the bottom of the ramp. v2= m/s
The two balls are attached to the light rigid rod, which is suspended by a cord from the support above it. If the balls and rod, initially at rest, are struck with the force F = 11.5 lb, calculate the magnitudes of the corresponding acceleration of the mass center and the rate at which the angular velocity of the bar is changing.
Along the length of a rod, the linear mass density of the rod is λ(x)=2.1x-x2/5.2, where L = 1 m is the length of the rod. Find the center of mass, and moment of inertia of the rod.Assume SI units are being used.
two blocks, of mass m1 = 400 g and m2 = 600 g, areconnected by a massless cord that is wrapped around a uniform diskof mass M= 500 g and radius R=12.0 cm.The disk can rotate withoutfriction about a fixed horizontal axis through its center; the cordcannot slip on the disk.The system is released from rest. Find (a) themagnitude of the acceleration of the blocks, (b) the tension T1 in thecord at the left, and (c) the tension T2 in the cord at the right.
The engine of the bus applies a torque of 328.2 N · m to a wheel of radius 0.538 m. Since the wheel does not slip, the road must be applying a force of static friction to the wheel that produces a counter-torque. Moreover, the bus has a constant velocity, so this counter-torque balances the applied torque. What is the magnitude of the static frictional force?