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 3dTH
The vector representing the frictional force on system A is shown below. Draw the remaining force vectors using the same scale.
Explain how you knew to draw the force vectors as you did.
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part B.
Find the direction of this force as the angle measured counterclockwise from the +x+�-axis directed horizontally to the right.
Express your answer in degrees.
A brick is positioned first with its largest surface in contact with an nclined plane. The plane is tilted at an angle to the horizontal until the brick just begins to slide, and the angle of the plane with the horizontal is measured. Then, the brick is turned on one of its narrow edges, the plane is tilted, and the angle is again measured. Predict whether there will be a difference in these measured angles. Explain your answer in terms of the equation for the force of friction. Is the coefficient of static frcton affected by the area of contact between the surfaces?
Block A in (Figure 1) is heavier than block B and is sliding down the
incline. All surfaces have friction. The rope is massless, and the
massless pulley turns on frictionless bearings. The rope and the pulley
are among the interacting objects, but you'll have to decide if they're
part of the system.
B
A
Draw a free-body diagram for the block B
Draw the vectors starting at the black dot. The location and orientation of the vectors will be graded. The length of the vectors will not be graded.
J
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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- In a laboratory experiment on friction, a 139-N block resting on a rough horizontal table is pulled by a horizontal wire. The pull gradually increases until the block begins to move and continues to increase thereafter. The figure (Figure 1) shows a graph of the friction force on this block as a function of the pull. Part C What would the graph look like if a 139 N brick were placed on the block, and what would be the coefficients of friction be in that case? Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Figure 1 of 1 double The values of the maximum static friction and the same kinetic friction would be relative to those for the lone block. be a inclined line f(N) only 75.0 The graph would half 50.0 The coefficients of friction would be have the same 25.0 relative to those for the lone shape block. P (N) be a horizontal 25.0 50.0 75.0 100.0 125.0 150.0 onlyarrow_forwardB The picture shows two masses that are attached by a string over a pulley. Block B is falling and dragging block A across the table. Draw a freebody diagram of both block A and block B. Label all the forces with the variables you have learned in Ch 5. If there is more than one force of the same type, make sure you include a subscript to make it unique. Write an expression for Fnet for block A using unit vector notation.arrow_forwardPre-Lab Question #5: In each of the situations below, the masses all have a weight of 10 newtons. The pulleys are frictionless and the masses are not moving. Indicate what the scale will read in each situation, and explain your reasoning. A Вarrow_forward
- a) Draw a diagram for all the forces acting on the rod. b) find the magnitude of the reaction force exerted by the cylinder on the rod at the point of C. c) The value of coefficient of friction between the rod and horizontal surface at the contact point A. Solve all three subparts early but correctly explain now.arrow_forwardA loop-the-loop section of a track is set up in a General Physics laboratory. A block is sliding on the surface of the track and passes through points A, B, C, D as shown in the diagram. Assume the track- block system has friction that is low enough it can be ignored. 01 Match the freebody diagram shown below with the forces exerted on the block at point D 1. 2. 02 03 04 05 D 3. Barrow_forwardThe Outlaw Run roller coaster in Branson, Missouri, features a track that is inclined at 80° below the horizontal and that spans a 49.4-m (162 ft) change in height. Y If the coefficient of friction for the roller coaster is the friction force on a 1800-kg coaster train? 0.30, what is the magnitude of Express your answer to two significant figures and include appropriate units. fx = 920 N Submit Part B. Correct Correct answer is shown. Your answer 919.88 N was either rounded differently or used a different number of significant figures than required for this part. Previous Answers How much work is done by friction during the time the coaster train travels along the incline? Express your answer to two significant figures and include appropriate units. W = -4.6x10¹ J Submit Previous Answers All attempts used; correct answer displayed Enter your answer with a different unit type. Review a list of acceptable units. Part C vju What is the speed of the coaster train at the bottom of the…arrow_forward
- C. Assimilation Direction: Do as instructed. 1. Consider the diagram at the right in answering the next three questions. Five locations along a roller coaster track are shown. Assume that there are negligible friction and air resistance forces acting upon the coaster car. Rank the five locations in order of increasing PE (smallest to largest PE). Use and or = signs. A A_ C E D C D В В A B VIL ASSES SAMENITarrow_forwardThe 80 kg man pushes on the 120 kg crate with a horizontal force F. The coefficients of static and kinetic friction between the crate and the surface are Us = 0.3 and Uk = 0.2. The coefficients of static and kinetic friction between the man and the surface are Us = 0.8 and Uk = 0.5. a. Calculate the normal force generated by the surface on the man and the crate. b. Using the information from part a, prove that the man will be able to move the crate c. what is the greatest acceleration the man can give the crate?arrow_forwardA force f acts on a block which rest on a smooth inclined plane as shown. indicate all forces acting on the block including the resolved components of f. II. Write down the component of f along the plane. II. Write equations represent in equilibrium of the block.arrow_forward
- Part A For the step ladder shown in the Figure, sides AC and CE are each 2.7 m long and hinged at C. BD is a 0.71 m long tie rod, installed halfway up the ladder. A 47 kg man climbs 1.65 m along the ladder. Assuming that the floor is frictionless and neglecting the weight of the ladder, find the tension in the tie rod. B O E Submit Answer Tries 0/6 Part B What is the force exerted by the ladder on the floor at A? Submit Answer Tries 0/6 Part C What is the force exerted by the ladder on the floor at E? Submit Answer Tries 0/6arrow_forwardThree cables are used to hold a hot-air balloon in place. The tension in the cable AD is 658 N. Draw the Free Body Diagram at A. Upload this along with your all your workings for this problem to the dropbox. What is the tension in the cable AB? Enter using 3 significant figures. What is the tension in the cable AC? Enter using 3 significant figures. What is the vertical force V exerted by the balloon at point A? Enter using 4 significant figures.arrow_forwardPlease help. How would one go about finding the value for n from a slope in the following equation. In the previous step of an experiment, we determined the drag coefficient with n=2. So in this next step, all values are known except for n.arrow_forward
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