An Atwood's machine consists of blocks of masses m₁ = 13.0 kg and m₂ = 18.0 kg attached by a cord running over a pulley as in the figure below. The pulley is a solid cylinder with mass M = 7.30 kg and radius r = 0.200 m. The block of mass m₂ is allowed to drop, andthe cord turns the pulley without slipping.MT₁m1rT2m₂(a) Why must the tension T₂ be greater than the tension T₁?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 T₁ and T₂.T₁ =NT₂ =N

a) Tension is a force that occurs when an object like string or rope is stretched or pulled in…

An Atwood's machine consists of blocks of masses m₁ = 13.0 kg and m₂ = 18.0 kg attached by a cord running over a pulley as in the figure below. The pulley is a solid cylinder with mass M = 7.30 kg and radius r=0.200 m. The block of mass m₂ is allowed to drop, and the cord turns the pulley without slipping. M T₁ m₁ Ⓡ (a) Why must the tension 7₂ be greater than the tension 7₂? 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 T₁ and T₂ T₂=

An Atwood's machine consists of blocks of masses m₁ = 13.0 kg and m₂ = 18.0 kg attached by a cord running over a pulley as in the figure below. The pulley is a solid cylinder with mass M = 7.30 kg and radius r=0.200 m. The block of mass m₂ is allowed to drop, and the cord turns the pulley without slipping. M T₁ m₁ Ⓡ (a) Why must the tension 7₂ be greater than the tension 7₂? 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 T₁ and T₂ T₂=

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 63P: A system consists of a disk of mass 2.0 kg and radius 50 cm upon which is mounted an annular...

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Similar questions

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
A playground merry-go-round of radius R = 2.00 m has a moment of inertia I = 250 kg m2 and is rotating at 10.0 rev/min about a frictionless, vertical axle. Facing the axle, a 25.0-kg child hops onto the merry-go-round and manages to sit down on the edge. What is the new angular speed of the merry-go-round?
Why is the following situation impossible? Starting from rest, a disk rotates around a fixed axis through an angle of 50.0 rad in a time interval of 10.0 s. The angular acceleration of the disk is constant during the entire motion, and its final angular speed is 8.00 rad/s.
A system consists of a disk of mass 2.0 kg and radius 50 cm upon which is mounted an annular cylinder of mass 1.0 kg with inner radius 20 cm and outer radius 30 cm (see below). The system rotates about an axis through the center of the disk and annular cylinder at 10 rev/s. (a) What is the moment of inertia of the system? (b) What is its rotational kinetic energy?
The hour hand and the minute hand of Big Ben, the Parliament tower clock in London, are 2.70 m and 4.50 m long and have masses of 60.0 kg and 100 kg, respectively (see Fig. P10.17). (a) Determine the total torque due to the weight of these hands about the axis of rotation when the time reads (i) 3:00, (ii) 5:15, (iii) 6:00, (iv) 8:20, and (v) 9:45. (You may model the hands as long, thin, uniform rods.) (b) Determine all times when the total torque about the axis of rotation is zero. Determine the times to the nearest second, solving a transcendental equation numerically.
A disk 8.00 cm in radius rotates at a constant rate of 1200 rev/min about its central axis. Determine (a) its angular speed in radians per second, (b) the tangential speed at a point 3.00 cm from its center, (c) the radial acceleration of a point on the rim, and (d) the total distance a point on the rim moves in 2.00 s.
A student sits on a freely rotating stool holding two dumbbells, each of mass 3.00 kg (Fig. P10.56). When his arms are extended horizontally (Fig. P10.56a), the dumbbells are 1.00 m from the axis of rotation and the student rotates with an angular speed of 0.750 rad/s. The moment of inertia of the student plus stool is 3.00 kg m2 and is assumed to be constant. The student pulls the dumbbells inward horizontally to a position 0.300 m from the rotation axis (Fig. P10.56b). (a) Find the new angular speed of the student. (b) Find the kinetic energy of the rotating system before and after he pulls the dumbbells inward. Figure P10.56
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The propeller of an aircraft accelerates from rest with an angular acceleration = 4t + 6, where is in rad/s2 and t isin seconds. What is the angle in radians through which thepropeller rotates from t = 1.00 s to t = 6.00 s?
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