The L-shaped object in the figure(Figure 1) consists of three massesconnected by light rods.Figure9.0 kg1.0 my1.2 kg2.0 m2.5 kgx1 of 1Part AWhat torque must be applied to this object to give it an angular acceleration of 1.90 rad/s² if it is rotated about the x axis?Express your answer using two significant figures.Tx =SubmitPart BTy=Templates Symbols undoIf it is rotated about the y axis?Express your answer using two significant figures.Part CSubmitTz =Request AnswerTemplates Symbols undo redo reset keyboard shortcuts helpSubmitProvide Feedbackredo reset keyboard shortcuts help,Request AnswerIf it is rotated about the z axis (which is through the origin and perpendicular to the plane of the figure)?Express your answer using two significant figures.Templates Symbols undo redo reset keyboard shortcuts help,Request AnswerN. mPearsonN. mN. m

a) Around x-axis the masses 1.2 and 2.5 kg does not contribute to the moment of inertia (As their…

The L-shaped object in the figure(Figure 1) consists of three masses connected by light rods. Figure 9.0 kg 1.0 m 1.2 kg 2.0 m 2.5 kg 1 of 1 Part A What torque must be applied to this object to give it an angular acceleration of 1.90 rad/s² if it is rotated about the z axis? Express your answer using two significant figures. Tz = Submit Part B Ty= Temp@es Symbols undo redo reset keyboard shortcuts help, If it is rotated about the y axis? Express your answer using two significant figures. Part C Submit Tz = Templates Symbols undo redo reset keyboard shortcuts help, Request Answer Submit Request Answer If it is rotated about the z axis (which is through the origin and perpendicular to the plane of the figure)? Express your answer using two significant figures. Templates Symbols undo redo reset keyboard shortcuts help, Provide Feedback N.m Request Answer N-m N.m

The L-shaped object in the figure(Figure 1) consists of three masses connected by light rods. Figure 9.0 kg 1.0 m 1.2 kg 2.0 m 2.5 kg 1 of 1 Part A What torque must be applied to this object to give it an angular acceleration of 1.90 rad/s² if it is rotated about the z axis? Express your answer using two significant figures. Tz = Submit Part B Ty= Temp@es Symbols undo redo reset keyboard shortcuts help, If it is rotated about the y axis? Express your answer using two significant figures. Part C Submit Tz = Templates Symbols undo redo reset keyboard shortcuts help, Request Answer Submit Request Answer If it is rotated about the z axis (which is through the origin and perpendicular to the plane of the figure)? Express your answer using two significant figures. Templates Symbols undo redo reset keyboard shortcuts help, Provide Feedback N.m Request Answer N-m N.m

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 59P: A bug of mass 0.020 kg is at rest on the edge of a solid cylindrical disk (M=0.10kg,R=0.10m)...

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A rope of negligible mass is wrapped around a 225 kg solid cylinder of radius 0.400 m. The cylinder is suspended several meters off the ground with its axis oriented horizontally, and turns on that axis without friction, (a) If a 75.0-kg man takes hold of the free end of the rope and falls under the force of gravity, what is his acceleration? (b) What is the angular acceleration of the cylinder? (c) if the mass of the rope were not neglected, what would happen to the angular acceleration of the cylinder as the man falls?
With the aid of a string, a gyroscope is accelerated from rest to 32 rad/s in 0.40 s under a constant angular acceleration. (a) What is its angular acceleration in rad/s2 ? (b) How many revolutions does it go through in the process?
A baseball catcher extends his arm straight up to catch a fast ball with a speed of 40 m/s. The baseball is 0.145 kg and the catcher’s arm length is 0.5 m and mass 4.0 kg. (a) What is the angular velocity of the arm immediately after catching the ball as measured from the arm socket? (b) What is the torque applied if the catcher stops the rotation of his arm 0.3 s after catching the ball?
A grindstone increases in angular speed uniformly from 4.00 rad/s to 12.0 rad/s in 4.00 s. (a) Calculate the grindstones angular acceleration. (b) Through what angle does it turn during that time? (See Section 7.2.)
Suppose you exert a force of 180 N tangential to a 0.280-m-radius, 75.0-kg grindstone (a solid disk). (a) What torque is exerted? (b) What is the angular acceleration assuming negligible opposing friction? (c) What is the angular acceleration if there is an opposing frictional force of 20.0 N exerted 1.50 cm from the axis?
Integrated Concepts An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. (a) What is its angular acceleration in rad/s2? (b) What is the tangential acceleration of a point 9.50 cm from the axis of rotation? (c) What is the radial acceleration in m/s2 and multiples of g of this point at full rpm?
During a 6.0-s time interval, a fly-wheel with a constant angular acceleration turns through 500 radians that acquire an angular velocity of 100 rad/s. (a) What is the angular velocity at the beginning of the 6.0 s? (b) What is the angular acceleration of the fly-wheel?
(a) What is the angular speed of the second hand of a clock? (b) What is the direction of as you view a clock hanging on a vertical wall? (c) What is the magnitude of the angular acceleration vector of the second hand?
Find the net torque on the wheel in Figure P10.23 about the axle through O, taking a = 10.0 cm and b = 25.0 cm. Figure P10.23
Suppose when Earth was created, it was not rotating. However, after the application of a uniform torque after 6 days, it was rotating at 1 rev/day. (a) What was the angular acceleration during the 6 days? (b) What torque was applied to Earth during this period? (c) What force tangent to Earth at its equator would produce this torque?
A bug of mass 0.020 kg is at rest on the edge of a solid cylindrical disk (M=0.10kg,R=0.10m) rotating in a horizontal plane around the vertical axis through its center. The disk is rotating at 10.0 rad/s. The bug crawls to the center of the disk. (a) What is the new angular velocity of the disk? (b) What is the change in the kinetic energy of the system? (c) If the bug crawls back to the outer edge of the disk, what is the angular velocity of the disk then? (d) What is the new kinetic energy of the system? (e) What is the cause of the increase and decrease of kinetic energy?