Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 4.1, Problem 1eT
The diagrams at right show top and side views of the spinning wheel in part A.
On each diagram, draw a vector to represent the
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A bucket of mass m is tied to a massless cable that is
wrapped around the outer rim of a uniform pulley of radius R,
on a frictionless axle, as shown in (Figure 1).
Part A
In terms of the stated variables, what must be the moment of inertia of the pulley so that it always has half as much kinetic energy as the bucket?
Express your answer in terms of the variables m and R.
I =
Figure
1 of 1
m
An object travels along a path as shown below. A center of rotation is identified for the path. Answer
the following question regarding the unit directions for the object traveling along the path.
OA
OB
OD
X
Of the four vectors shown, which vector represents the un direction?
OC
Center of Rotation
B
Consider the system of two blocks shown in (Figure 1). There is
no friction between block A and the tabletop. The mass of block
B is 4.90 kg. The pulley rotates about a frictionless axle, and the
light rope doesn't slip on the pulley surface. The pulley has radius
0.200 m and moment of inertia 1.40 kg · m?
Part A
If the pulley is rotating with an angular speed of 8.00 rad/s after the block has descended 1.20 m, what is the mass of block A?
Express your answer with the appropriate units.
µA
Value
Units
mA =
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Chapter 4 Solutions
Tutorials in Introductory Physics
Ch. 4.1 - Draw arrows on the diagram to represent the...Ch. 4.1 - Mark the position of each of the labeled points at...Ch. 4.1 - Suppose the wheel makes one complete revolution in...Ch. 4.1 - Would two observers on either side of a rotating...Ch. 4.1 - The diagrams at right show top and side views of...Ch. 4.1 - In the space at right sketch the position vectors...Ch. 4.1 - Let | in terms of |o| . 1. The wheel is made to...Ch. 4.1 - Suppose the wheel slows down uniformly, so that ||...Ch. 4.1 - A force of magnitude Fo is applied to point M as...Ch. 4.1 - Compare the magnitude of the net torque about the...
Ch. 4.2 - A ruler is placed on a pivot and held at an angle...Ch. 4.2 - Draw a free-body diagram for the ruler (after it...Ch. 4.2 - How would your free-body diagram change if the...Ch. 4.2 - Predict: which spool will reach the floor first....Ch. 4.2 - Obtain two spools and a ring stand. Use the...Ch. 4.2 - Consider the following discussion between three...Ch. 4.2 - Write down Newton’s second law for each spool....Ch. 4.3 - A T-shaped board of uniform mass density has two...Ch. 4.3 - Prob. 1bTCh. 4.3 - Attach day to the bottom left side of the board so...Ch. 4.3 - Prob. 2bTCh. 4.3 - C. Imagine that the T-shaped board (with no clay...
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