Four beads, each of mass m = 1 kg, are attached at various locations to a ring, also of mass m = 1 kg, and radius R = 1 m (see figure). Find the coordinates of the center of mass of the system consisting of the ring and the beads. Angle A, located between the first bead and the horizontal, is equal to 47°. Angle B, located between the horizontal and the second bead, is equal to 50°. Angle C, located between the third bead and the horizontal, is equal to 70°. Angle D, located between the horizontal and the fourth bead, is equal to 33º. Xcm = Ycm = m m ma D M3 R M A B m₁ m₂

Four beads, each of mass m = 1 kg, are attached at various locations to a ring, also of mass m = 1 kg, and radius R = 1 m (see figure). Find the coordinates of the center of mass of the system consisting of the ring and the beads. Angle A, located between the first bead and the horizontal, is equal to 47°. Angle B, located between the horizontal and the second bead, is equal to 50°. Angle C, located between the third bead and the horizontal, is equal to 70°. Angle D, located between the horizontal and the fourth bead, is equal to 33º. Xcm = Ycm = m m ma D M3 R M A B m₁ m₂

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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Concept explainers

Rigid Body

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).

Question

Four beads, each of mass m = 1 kg, are attached at various
locations to a ring, also of mass m = 1 kg, and radius
R = 1 m (see figure). Find the coordinates of the center of
mass of the system consisting of the ring and the beads.
Angle A, located between the first bead and the horizontal, is
equal to 47°. Angle B, located between the horizontal and the
second bead, is equal to 50°. Angle C, located between the
third bead and the horizontal, is equal to 70°. Angle D,
located between the horizontal and the fourth bead, is equal
to 33º.
Xcm =
Ycm =
m
m
MA
D
U
m₂
R
y
M
A
B
m₁
m₂
X

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