An Atwood machine consists of two masses, mA = 65 kg and m³ = 71 kg, connected by a massless inelastic cord that passes over a pulley free to rotate (Figure 1). The pulley is a solid cylinder of radius R = 0.42 m and mass 6.0 kg. [Hint: The tensions FTA and FTB are not equal.] Figure ROR FTA MA FTB MB 1 of 1 Part A Determine the acceleration of each mass. Express your answer to two significant figures and include the appropriate units. a = 0.42 Submit Part B Correct m % error = What % error would be made if the moment of inertia of the pulley is ignored? Express your answer using two significant figures. IVE ΑΣΦ Submit Previous Answers Provide Feedback Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining ? %

An Atwood machine consists of two masses, mA = 65 kg and m³ = 71 kg, connected by a massless inelastic cord that passes over a pulley free to rotate (Figure 1). The pulley is a solid cylinder of radius R = 0.42 m and mass 6.0 kg. [Hint: The tensions FTA and FTB are not equal.] Figure ROR FTA MA FTB MB 1 of 1 Part A Determine the acceleration of each mass. Express your answer to two significant figures and include the appropriate units. a = 0.42 Submit Part B Correct m % error = What % error would be made if the moment of inertia of the pulley is ignored? Express your answer using two significant figures. IVE ΑΣΦ Submit Previous Answers Provide Feedback Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining ? %

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 8CQ: A massless tether with a masses tied to both ends rotates about a fixed axis through the center. Can...

See similar textbooks

Similar questions

A wheel starts from rest and in 12.65 s is rotating with an angular speed of 5.435 rad/s. a. Find the magnitude of theconstant angular acceleration of the wheel. b. Through whatangle does the wheel move in 6.325 s?
whaT magnitude of (constant) force appliedhorizontally at the axle of thewheel is necessary to raise the wheelover a step obstacle of heighth = 3.00 cm? The wheel’s radius is r =6.00 cm, and its mass is m= 0.800 kg.
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 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 box is suspended from a coil of rope on a pulley of radius (0.54m) and rotating at a constant angular velocity (1.6rad/s) to lift it up. - Calculate the height that the box reaches after three seconds ?
A 2.05 kg mass is attached to a light cord that is wrapped around a pulley of radius 4.25 cm, which turns with negligible friction. The mass falls at a constant acceleration of 3.10 m/s?. Find the moment of inertia of the pulley?
In unit-vector notation, what is the net torque about the origin on a flea located at coordinates (0, -2.45 m, 1.68 m) when forces F→1=(6.42N)k̂ and F→2=(-4.93N)ĵ act on the flea?
. Compute the torque under the following considerations: F=120 N , Θ=14.7∘, and r=6.6 m
The wheel has radius ?? = 60 cmand is free to rotate without friction about acentral axle. A force ?? = 15N is applied tothe wheel as shown, at distance ?? = 20 cm.from the axle. ?? = 50°
The rotor of a lab centrifuge has moment of inertia 0.0113 kg m^2 and spins at 1470 rad/s.If a brake exerts a perpendicular force of 16 N at 0.075 m from the spin axis, what is themagnitude of the angular acceleration?
A rope is wrapped around the rim of a large uniform solid disk of mass 315 kg and radius 2.00 m. The horizontal disk is made to rotate by pulling on the rope with a constant force of 195 N. If the disk starts from rest, what is its angular speed in rev/s at the end of 1.95 s?
Find the net torque on the wheel as shown about the axle through O, taking a = 10.0 cm and b = 25.0 cm.