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 16.2, Problem 2bTH
As the elevator approach its destination, its speed decreases. (It continues to move downward.)
i. How does the acceleration of crate A compare to that of crate B? Explain.
ii. In the spaces provided below, draw and label separate free-body diagram for the crates in this case.
iii. Rank the forces on the crates according to magnitude, from largest to smallest. Explain your reasoning, including how you used
iv. In the spaces provided at right, draw arrows to indicate the direction of the net force on each crate. If the net force on either crate is zero, state so explicitly. Explain.
Is the magnitude of the net force acting on crate Agreater than, less than, or equal to that on crate B? Explain.
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Students have asked these similar questions
Q1: Is the force of static friction constant as the incline rises? Explain your answer.
Q2: If Mr. Einstein now wears ankle weights while sliding down, would the kinetic frictional force he experiences be the same, less, or greater than he experienced before? Would he accelerate faster? Would the coefficient of kinetic friction change?
Please explain the following:
1.When you apply a constant force to an object does the object move at a constant
velocity or does its velocity increase? Explain why this occurs using your understanding of
acceleration/force (gravity).
2. When you increase the applied force, what happens to the acceleration of the object?
Explain.
3. As the mass increases, what happens to the amount of force needed to begin moving
the object? Explain.
4. Do you need to continue applying force on an object to keep it moving? Explain why.
**please answer the last two parts only.** (f1s & acceleration of block 1)
Block 1 (20 kg) is pulled by a rope from left to right up a ramp which is inclined 20 degrees from the horizontal. The rope pulls on block 1 with a force of 340 N parallel to the surface of the inclined plane. The coefficient of kinetic friction between the block and the surface equals 0.4.IN THE SPACE PROVIDED BELOW , draw the free body diagram for block 1 using the two-subscript notation from class. Assume that the x-axis is parallel to the incline and positive in the direction up the incline. After completing the free body diagram, enter below each force and its x & y-components.
FORCES on BLOCK 1 Weight force on block 1 by EarthW1E = i + j NTension force on block 1 by RopeT1R = i + j NNormal force on block 1 by SurfaceN1S = i + j NFrictional force on block 1 by Surfacef1S = i + j N
What is the acceleration a of block 1?
a = i + j m/s2
Chapter 16 Solutions
Tutorials in Introductory Physics
Ch. 16.1 - Draw a freebody diagram for the book. Label each...Ch. 16.1 - How do the forces exerted on the book in this case...Ch. 16.1 - Consider the following statement made by a student...Ch. 16.1 - Consider a book on top of a level table while the...Ch. 16.1 - Review your answer to part a. In addition, reread...Ch. 16.1 - In the spaces below, draw a free-body diagram for...Ch. 16.1 - Identify all the Newton’s third law...Ch. 16.1 - Rank, from largest to smallest, the magnitudes of...Ch. 16.1 - Draw and label a freebody diagram for system S12 .Ch. 16.1 - Compare the forces that appear on your free-body...
Ch. 16.1 - Let C represent the system consisting of the whole...Ch. 16.1 - A block is at rest on an incline as shown below at...Ch. 16.1 - A block is at rest on an incline as shown below at...Ch. 16.1 - A block is at rest on an incline as shown below at...Ch. 16.1 - Draw a free-body diagram for the book. Label the...Ch. 16.1 - For each force that appears on your free-body...Ch. 16.2 - In the spaces provided draw and label separate...Ch. 16.2 - Rank the magnitudes of all the horizontal forces...Ch. 16.2 - Are any of the forces that you drew for instant 1...Ch. 16.2 - Are any of the forces that you drew for instant 1...Ch. 16.2 - Two creates, A and B, are in an elevator as shown....Ch. 16.2 - As the elevator approach its destination, its...Ch. 16.2 - Prob. 3aTHCh. 16.2 - The vector representing the acceleration systems A...Ch. 16.2 - The vector representing the net force on system A...Ch. 16.2 - The vector representing the frictional force on...Ch. 16.2 - Prob. 4bTHCh. 16.2 - Prob. 4cTHCh. 16.2 - Prob. 4dTHCh. 16.2 - Prob. 5aTHCh. 16.2 - Using only the forces in your free-body diagram...Ch. 16.2 - Using only the forces in your free-body diagrams...Ch. 16.2 - Suppose the friction between the two blocks is...Ch. 16.3 - Draw an arrow to indicate the direction of the...Ch. 16.3 - Draw an arrow to indicate the direction of force...Ch. 16.3 - Draw and label a free-body diagram for the block...Ch. 16.3 - Prob. 2THCh. 16.3 - Describe the motion of each of the systems A, B,...Ch. 16.3 - Draw vectors below to represent the acceleration...Ch. 16.3 - Draw and label separate freebody diagrams for...Ch. 16.3 - Rank the magnitudes of the net forces on systems...Ch. 16.3 - Write expressions for the tension in strings P and...
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