An electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel as shown in the figure below. The flywheel is a solid disk with a mass of 79.0 kg and a radius R = 0.625 m. It turns on a frictionless axde. Its pulley has much smaller mass and a radius of 0.230 m. The tension T, in the upper (taut) segment of the belt is 171 N, and the flywheel has a clockwise angular acceleration of 1.67 rad/s?. Find the tension in the lower (slack) segment of the belt. 42.4 Your response differs from the correct answer by more than 10%. Double check your calculations. N

An electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel as shown in the figure below. The flywheel is a solid disk with a mass of 79.0 kg and a radius R = 0.625 m. It turns on a frictionless axde. Its pulley has much smaller mass and a radius of 0.230 m. The tension T, in the upper (taut) segment of the belt is 171 N, and the flywheel has a clockwise angular acceleration of 1.67 rad/s?. Find the tension in the lower (slack) segment of the belt. 42.4 Your response differs from the correct answer by more than 10%. Double check your calculations. N

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

In the figure, two 5.40 kg blocks are connected by a massless string over a pulley of radius 2.40 cm and rotational inertia 7.40 × 10-4 kg-m². The string does not slip on the pulley; it is not known whether there is friction between the table and the sliding block; the pulley's axis is frictionless. When this system is released from rest, the pulley turns through 0.800 rad in 154 ms and the acceleration of the blocks is constant. What are (a) the magnitude of the pulley's angular acceleration, (b) the magnitude of either block's acceleration, (c) string tension T₁, and (d) string tension T₂? Assume free-fall acceleration to be equal to 9.81 m/s². (a) Number i (b) Number (c) Number i (d) Number i Units Units Units Units
An Atwood's machine consists of blocks of masses m1 = 13.0 kg and m2 = 16.0 kg attached by a cord running over a pulley as in the figure below. The pulley is a solid cylinder with mass M = 9.10 kg and radius r = 0.200 m. The block of mass m2 is allowed to drop, and the cord turns the pulley without slipping. (a) Why must the tension T2 be greater than the tension T1? (b) What is the acceleration of the system, assuming the pulley axis is frictionless? (Give the magnitude of a.) =________ m/s2 (c) Find the tensions T1 and T2. T1= ______N T2= _____N
A pulley with an unknown mass has a 0.3m radius that is initially at rest. The rotational inertia of the pulley is 0.35 mr^2. A 10 kg box hangs from a rope that is wrapped around the pulley that is also initially at rest. The box accelerates downward a distance of 10m and reaches a velocity of 8 m/s. Calculate the mass of the pulley. Answers must use the correct SI units.
A pulley attached to the top of a ramp has a rope wrapped around it (like a spoon of thread). Treat the pulley like a solid cylinder. The rope is attached to a solid sphere at its axle. The axle turns without friction. The system is released from rest. The rope unwinds from the pulley and the sphere rolls without slipping down the hill. The mass of the pulley is 20.0kg and has a radius of 0.250m. The 8. sphere has a mass of 50.0kg and a radius of 0.500m. The ramp makes an angle of 40.0° with the horizontal. (Solve this problem using Force-Torque Principles.) What is the acceleration of the sphere? а. b. What are the angular accelerations of the pulley and the sphere?
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?
An electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel as shown in figure. The flywheel is a solid disk with a mass of 80.0 kg and a radius R=0.625 m. It turns on a frictionless axle. Its pulley has much smaller mass and a radius of r=0.230 m. The tension T u in the upper ( taut ) segment of the belt is 135 N, and the flywheel has a clockwise angular acceleration of 1.67 rad/s 2 . Find the tension in the lower (slack ) segment of the belt.
In the figure, two 7.60 kg blocks are connected by a massless string over a pulley of radius 1.30 cm and rotational inertia 7.40 x 104 kg-m2. The string does not slip on the pulley; it is not known whether there is friction between the table and the sliding block; the pulley's axis is frictionless. When this system is released from rest, the pulley turns through 1.20 rad in 154 ms and the acceleration of the blocks is constant. What are (a) the magnitude of the pulley's angular acceleration, (b) the magnitude of either block's acceleration, (c) string tension T, and (d) string tension T? Assume free-fall acceleration to be equal to 9.81 m/s?.
An Atwood's machine consists of blocks of masses m₁ = 13.0 kg and m₂ = 24.0 kg attached by a cord running over a pulley as in the figure below. The pulley is a solid cylinder with mass M = 7.60 kg and radius r = 0.200 m. The block of mass m., is allowed to drop, and the cord turns the pulley without slipping. M T2 Q (a) Why must the tension 7₂ be greater than the tension 7₁? This answer has not been graded yet. (b) What is the acceleration of the system, assuming the pulley axis is frictionless? (Give the magnitude of a.) m/s² (c) Find the tensions T, and T₂. T₁ = T2₂ =
In the figure, the block has mass m=0.45 kg and the pulley is on a frictionless horizontal axle with radius R=5.35 cm. When released from rest, the cylindrical pulley makes 10 full turns in 4.57 seconds as the block goes down. Find the rotational inertia of the pulley.
A mass (M = 5.0 kg) is connected to a two pulley system. Pulley 1 has a moment of inertia, I = 0.5 kgm2, and a radius, R = 0.2 m. Pulley 2 has moment of inertia, I = 0.3 kgm2, and a radius, R = 0.15 m. The cord is spooled around pulley 2. The pulleys rotate about frictionless axles and the cord can be considered massless. (i) Determine the magnitude of the acceleration of m (ii) Determine the magnitude of the tension in the string attached to m (iii) Determine the magnitude of the tension between the pulleys.
In the figure, two 6.90 kg blocks are connected by a massless string over a pulley of radius 1.10 cm and rotational inertia 7.40 x 10-4 kg-m². The string does not slip on the pulley; it is not known whether there is friction between the table and the sliding block; the pulley's axis is frictionless. When this system is released from rest, the pulley turns through 0.900 rad in 148 ms and the acceleration of the blocks is constant. What are (a) the magnitude of the pulley's angular acceleration, (b) the magnitude of either block's acceleration, (c) string tension T1, and (d) string tension T2? Assume free-fall acceleration to be equal to 9.81 m/s?. (a) Number i Units (b) Number Units (c) Number Units (d) Number Units >
9.16 A flywheel in a motor is spinning at 570.0 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75.0 cm. The power is off for 33.0 ss, and during this time the flywheel slows down uniformly due to friction in its axle bearings. During the time the power is off, the flywheel makes 220.0 complete revolutions. At what rate is the flywheel spinning when the power comes back on? Express your answer in revolutions per minutes.