A thin, light wire is wrapped around the rim of a wheel, as shown in (Figure 1). The wheel rotates about a stationary horizontal axle that passes through the center of the wheel. The wheel has radius 0.190 m and moment of inertia for rotation about the axle of 0.470 kg m. A small block with mass 0.350 kg is suspended from the free end of the wire. When the system is released from rest, the block descends with constant acceleration. The bearings in the wheel at the axle are rusty, so friction there does -7,50 J of work as the block descends 3.70 m. Part A What is the magnitude of the angular velocity of the wheel after the block has descended 3.70 m? Express your answer in radians per second. Πνα ΑΣφ rad/s Submit Request Answer

A thin, light wire is wrapped around the rim of a wheel, as shown in (Figure 1). The wheel rotates about a stationary horizontal axle that passes through the center of the wheel. The wheel has radius 0.190 m and moment of inertia for rotation about the axle of 0.470 kg m. A small block with mass 0.350 kg is suspended from the free end of the wire. When the system is released from rest, the block descends with constant acceleration. The bearings in the wheel at the axle are rusty, so friction there does -7,50 J of work as the block descends 3.70 m. Part A What is the magnitude of the angular velocity of the wheel after the block has descended 3.70 m? Express your answer in radians per second. Πνα ΑΣφ rad/s Submit Request Answer

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)...

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A rigid body is an object which does not change its shape or undergo any significant deformation due to an external force or movement. Mathematically speaking, the distance between any two points inside the body doesn't change in any situation.

Rigid Body Dynamics

Rigid bodies are defined as inelastic shapes with negligible deformation, giving them an unchanging center of mass. It is also generally assumed that the mass of a rigid body is uniformly distributed. This property of rigid bodies comes in handy when we deal with concepts like momentum, angular momentum, force and torque. The study of these properties – viz., force, torque, momentum, and angular momentum – of a rigid body, is collectively known as rigid body dynamics (RBD).

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A thin, light wire is wrapped around the rim of a wheel, as shown in (Figure 1). The wheel rotates
about a stationary horizontal axle that passes through the center of the wheel. The wheel has
radius 0.190m and moment of inertia for rotation about the axle of 0.470 kg - m. A small block
with mass 0.350 kg is suspended from the free end of the wire. When the system is released
from rest, the block descends with constant acceleration. The bearings in the wheel at the axle
are rusty, so friction there does -7.50 J of work as the block descends 3.70 m.
Part A
What is the magnitude of the angular velocity of the wheel after the block has descended 3.70 m?
Express your answer in radians per second.
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rad/s
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