Insert Draw Design Layout V Tell me 2 Share Verdana v10 vA A A evA. Paragraph Styles te Dictat Ge n ñ I Consider the 13.5 kg motorcycle wheel shown in the figure. Assume it to be approximately an annular ring with an inner radius of = 0.280 m R1 and an outer radius of R2 = 0.460 m. The motorcycle is on its center stand, so that the wheel can spin freely. (a) If the drive chain exerts a force of 2125 N at a radius of 5.00 cm, what is the angular acceleration of the wheel in rad/s2? (b) What is the tangential acceleration, In m/s2, of a point on the outer edge of the tire? How long in seconds, starting from rest, does it take to reach an angular velocity of 80.0 rad/s? age 1 of 1 114 words Focus

Insert Draw Design Layout V Tell me 2 Share Verdana v10 vA A A evA. Paragraph Styles te Dictat Ge n ñ I Consider the 13.5 kg motorcycle wheel shown in the figure. Assume it to be approximately an annular ring with an inner radius of = 0.280 m R1 and an outer radius of R2 = 0.460 m. The motorcycle is on its center stand, so that the wheel can spin freely. (a) If the drive chain exerts a force of 2125 N at a radius of 5.00 cm, what is the angular acceleration of the wheel in rad/s2? (b) What is the tangential acceleration, In m/s2, of a point on the outer edge of the tire? How long in seconds, starting from rest, does it take to reach an angular velocity of 80.0 rad/s? age 1 of 1 114 words Focus

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 10.7CYU: Check Your Understanding The fan blades on a jet engine have a moment of inertia 30.0kgm2 . In 10s,...

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Check Your Understanding The fan blades on a jet engine have a moment of inertia 30.0kgm2 . In 10s, they rotate counterclockwise from rest up to a rotation rate of 20 rev/s. (a) What torque must be applied to the blades to achieve this angular acceleration? (b) What is the torque required to bring the fan blades rotating at 20 rev/s to a rest in 20s?
An ice skater is preparing for a jump with turns and has his arms extended. His moment of inertia is 1.8kgm2 while his arms are extended, and he is spinning at 0.5 rev/s. If he launches himself into the air at 9.0 m/s at an angle of 45 with respect to the ice, how many revolutions can he execute while airborne if his moment of inertia in the air is 0.5kgm2 ?
A massless tether with a masses tied to both ends rotates about a fixed axis through the center. Can the total acceleration of the tether mass combination be zero If the angular velocity Is constant?
If a rigid body has a constant angular acceleration, what is the functional form of the angular position?
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?
If a rigid body has a constant angular acceleration, what is the functional form of the angular velocity In terms of the time variable?
What is the angular velocity of a 75.0-cm-diameter tire on an automobile traveling at 90.0 km/h?
Check Your Understanding The fan blades on a turbofan jet engine (shown below) accelerate from rest up to a rotation rate of 40.0 rev/s in 20 s. The increase in angular velocity of the fan is constant in time. (The GE90-11OB1 turbofan engine mounted on a Boeing 777, as shown, is currently the largest turbofan engine in the world, capable of thrusts of 330-510 kN.) (a) What is the average angular acceleration? (b) What is the instantaneous angular acceleration at any time during the first 20 s?
A top has moment of inertia 3.2104kgm2 and radius 4.0 cm from the center of mass to the pivot point. If it spins at 20.0 rev/s and is precessing, how many revolutions does it precess in 10.0 s?
A hollow cylinder that is rolling without slipping is given a velocity of 5.0 m/s and rolls up an incline to a vertical height of 1.0 m. If a hollow sphere of the same mass and radius is given the same initial velocity how high vertically does it roll up the incline?
Jupiter rotates about its axis once every 9 hours 55 minutes. a. What is Jupiter's angular speed of rotation? b. What is the effect of this rapid rotation on the shape of theplanet?
A cylinder with rotational inertia I1=2.0kgm2 rotates clockwise about a vertical axis through its center with angular speed 1=5.0rad/s . A second cylinder with rotational inertia I2=1.0kgm2 rotates counterclockwise about the same axis with angular speed 2=8.0rad/s . If the cylinders couple so they have the same rotational axis what is the angular speed of the combination? What percentage of the original kinetic energy is lost to friction?