Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Textbook Question
Chapter 2.3, Problem 3fT
Consider the following statement about the Atwood’s machine made by a student.
“All string can do is transmit forces from other objects. That means that the string in the Atwood’s machine just transmits the weight of one block to the other.”
Do you agree with this student? Explain your reasoning.
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Students have asked these similar questions
In the (Figure 1) the coefficient of static friction between mass mAmA and the table is 0.50, whereas the coefficient of kinetic friction is 0.10. Ignore masses of the cord and the (frictionless) pulley.
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Malcolm has made the contraption in the
image below. He knows the mass of the first
block is 3 kg. He connects it to a 2kg ball
with a light string which runs over a pulley.
Malcolm knows the mass of the pulley is
700 grams. The block slides on a table with
a coefficient of friction of 0.310. Assume that
the string does not slip on the pulley which
rotates about a frictionless axle. Help
Malcolm figure out the following:
1. Draw a force diagram for each
component of the system
2. Calculate the linear acceleration of
the ball
3. Figure out the tension in each section
of the string.
3 kg
700 g
2 kg
fa
Malcolm has made the contraption in the
image below. He knows the mass of the first
block is 3 kg. He connects it to a 2kg ball
with a light string which runs over a pulley.
Malcolm knows the mass of the pulley is
700 grams. The block slides on a table with
a coefficient of friction of 0.310. Assume that
the string does not slip on the pulley which
rotates about a frictionless axle. Help
Malcolm figure out the following:
1. Draw a force diagram for each
component of the system
2. Calculate the linear acceleration of
the ball
3. Figure out the tension in each section
of the string.
3 kg
700 g
2 kg
ifa
Chapter 2 Solutions
Tutorials in Introductory Physics
Ch. 2.1 - Draw a large dot on your large sheet of paper to...Ch. 2.1 - Describe the remaining forces you have indicated...Ch. 2.1 - All forces arise from interactions between...Ch. 2.1 - There are many different types of forces,...Ch. 2.1 - Consider the following discussion between two...Ch. 2.1 - Label each of the forces on your free-body diagram...Ch. 2.1 - Sketch a free-body diagram for a book at rest on a...Ch. 2.1 - A second book of greater mass is placed on top of...Ch. 2.1 - Compare the free-body diagram for the lower book...Ch. 2.1 - Which, if any, Newton’s third law force pairs are...
Ch. 2.1 - A magnet is supported by another magnet as shown...Ch. 2.1 - An iron rod is held up by a magnet as shown. The...Ch. 2.2 - Compare the net force (magnitude and direction) on...Ch. 2.2 - Draw separate free-body diagrams for system A and...Ch. 2.2 - Is the magnitude of the force exerted on system A...Ch. 2.2 - D. Identify all the Newton's third law...Ch. 2.2 - Rank the magnitudes of the horizontal forces that...Ch. 2.2 - Suppose the mass of each brick is 2.5 kg, the...Ch. 2.2 - Describe the motions of systems A and B. How does...Ch. 2.2 - Compare the net force (magnitude and direction) on...Ch. 2.2 - Draw and label separate free-body diagrams for...Ch. 2.2 - Consider the following discussion between two...Ch. 2.2 - Rank the magnitudes of all the horizontal forces...Ch. 2.2 - Compare the magnitude of the netforce on system C...Ch. 2.2 - Draw and label a free-body diagram for system C....Ch. 2.2 - At right is a free-body diagram for a cart. All...Ch. 2.3 - Describe the motions of block A, block B, and the...Ch. 2.3 - On a large sheet of paper, draw a separate...Ch. 2.3 - Identify all the Newton's third law...Ch. 2.3 - Rank, from largest to smallest, the magnitudes of...Ch. 2.3 - Consider the horizontal components of the forces...Ch. 2.3 - If the motion of the blocks is the same as in...Ch. 2.3 - Suppose the mass of the string that connects...Ch. 2.3 - A string exerts a force on each of the two objects...Ch. 2.3 - If you know that the net force on a massless...Ch. 2.3 - Predict the subsequent motions of objects A and B...Ch. 2.3 - Draw separate free-body diagrams for objects A and...Ch. 2.3 - Predict: • what will happen to object C when it is...Ch. 2.3 - Draw and label separate free-body diagrams for...Ch. 2.3 - The weight of a 200 g mass has magnitude...Ch. 2.3 - Consider the following statement about the...
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