Concept explainers
Figure 5-28 shows four choices for the direction of a force of magnitude F to be applied to a block on an inclined plane. The directions are either horizontal or vertical. (For choice b, the force is not enough to lift the block off the plane.) Rank the choices according to the magnitude of the normal force acting on the block from the plane, greatest first.
Figure 5-28 Question 12.
Want to see the full answer?
Check out a sample textbook solutionChapter 5 Solutions
Fundamentals of Physics Extended
Additional Science Textbook Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
Chemistry: A Molecular Approach (4th Edition)
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
Human Physiology: An Integrated Approach (8th Edition)
- A rectangular block has a length that is six times its width and a height that is three times its width. The block's surfaces are all identical except for size. When the block is placed on a horizontal tabletop so that the area in contact with the table is length ✕ width, it is found that a horizontal force of 11.6 N applied to the block is just sufficient to overcome the static friction force and cause the block to move. The block is then knocked over so that the area in contact with the table is length ✕ height. Now, what minimum horizontal force will cause the block to move?arrow_forwardA 2.20 kg block is initially at rest on a horizontal surface. A horizontal force of magnitude 4.83 N and a vertical force are then applied to the block (Fig. 6-17). The coefficients of friction for the block and surface are µs = 0.4 and µk = 0.25. Determine the magnitude of the frictional force acting on the block if the magnitude of is (a) 8.00 N and (b) 12.0 N. (The upward pull is insufficient to move the block vertically.)arrow_forwardA man pushing a crate of mass m = 92.0 kg at a speed of v = 0.875 m/s encounters a rough horizontal surface of length { = 0.65 m as in the figure below. If the coefficient of kinetic friction between the crate and rough surface is 0.359 and he exerts a constant horizontal force of 293 N on the crate. (a) Find the magnitude and direction of the net force on the crate while it is on the rough surface. magnitude direction ---Select--- (b) Find the net work done on the crate while it is on the rough surface. J (c) Find the speed of the crate when it reaches the end of the rough surface. m/sarrow_forward
- The force acting on an object is given by Fx = (5x − 6) N, where x is in meters. (a) Choose the plot that best describes the force versus x from x = 0 to x = 3.00 m. A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,−3) and extends up and to the right at a constant slope to (3,9). A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,−6) and extends up and to the right at a constant slope to (3,9). A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,3) and extends down and to the right at a constant slope to (3,−9). A line is plotted on a coordinate plane that has a horizontal axis labeled x (m) and a vertical axis labeled Fx (N). The line starts at (0,6) and extends down and to the right at a constant slope to…arrow_forwardA rope exerts a force of 50 N on a box to keep it stationary. If the box is on a plane inclined 25° from the horizontal and the coefficient of static friction is 0.29, calculate the normal force exerted on the box.arrow_forwarda block of mass m is held stationary on a ramp by the frictional force on it from the ramp. A force , directed up the ramp, is then applied to the block and gradually increased in magnitude from zero. During the increase, what happens to the direction and magnitude of the frictional force on the block?arrow_forward
- The figure shows an overhead view of a 0.0270 kg lemon half and two of the three horizontal forces that act on it as it is on a frictionless table. Force Was a magnitude of 5.00 N and is at 9₁ = 33.0°. Force was a magnitude of 8.00 N and is at 92 = 28.0°. In unit- vector notation, what is the third force if the lemon half (a) is stationary, (b) has the constant velocity m/s, and (c) has the varying velocity m/s, where t is time? (a) Number -1.0326 (b) Number i -1.0326 (c) Number i -0.7626 citarrow_forwardA particle of mass 0.5 kg is at rest on a rough plane inclined at an angle to the horizontal where sin = 3/5. The particle is just prevented fromsliding from the plane by a force of 2 N applied in an upward directionparallel to a line of the greatest slope of the plane.(a) Draw a figure showing all the forces acting on the particle. (b) Calculate the coefficient of friction between the particle and theplane.(c) Calculate by how much the force of 2 N must be increased so thatthe particle is about to move up the plane.arrow_forwardA block of mass 4.20 kg is pushed up against a wall by a force P that makes an angle of θ = 50.0°angle with the horizontal as shown below. The coefficient of static friction between the block and the wall is 0.270.arrow_forwardOn a horizontal plane a block of mass m = 0.30 kg is placed and initially held at rest. To this block a massless string is attached and it initially keeps another block of mass M = 0.50 kg vertically at rest via a fixed pulley as shown in Figure. The coefficient of kinetic friction between the block m and the plane is Pk -0.25, but the friction between the block M and the vertical wall is zero. Calculate the tension T by string in N. (Hint: First calculate the acceleration of m or M. And set up the equation of motion for M to find the tension T.) T m Marrow_forwardYou are holding a book of mass 10.7 kg that is initially at rest against a vertical wall by exerting a force of magnitudeF Yb = 100.8 N at an angle of θ = 34.7 degrees, as indicated in the figure.If the coefficients of friction between the book and the wall are μs = 0.46 and μk = 0.36, find the magnitude of thefrictional force from the wall on the book.arrow_forwardIn the figure, a block weighing 23.0 N is held at rest against a vertical wall by a horizontal force of magnitude 61 N. The coefficient of static friction between the wall and the block is 0.55, and the coefficient of kinetic friction between them is 0.38. In six experiments, a second force P is applied to the block and directed parallel to the wall with these magnitudes and directions: (a)35 N, up, (b) 13 N, up, (c)48 N, up, (d)62 N, up, (e)9.1 N, down, and (f)19 N, down. In each experiment, what is the frictional force on the block, including sign? Take the direction up the wall as positive, and down the wall as negative. Next, calculate the acceleration, including sign, of the block in each case. Note that acceleration is zero if the block does not move. (g) What is the acceleration in (a)? (h) What is the acceleration in (b)? (i) What is the acceleration in (c)? (i) What is the acceleration in (d)? (k) What is the acceleration in (e)? (1) What is the acceleration in (f)?arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON