F m A block of mass m is pulled along a rough horizontal surface by a force F that is applied at an angle e above the horizontal. The block moves at a constant horizontal acceleration a. Express all the results in terms of m, 0, F, a, and fundamental constants. a. Draw and label a free-body diagram showing all the forces acting on the block. b. Write an expression for the normal force applied by the surface to the block. c. Determine the coefficient of kinetic friction between the block and the surface.

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Chapter4: The Laws Of Motion
Section: Chapter Questions
Problem 84AP: In Figure P1.84, the pulleys and the cord are light, all surfaces are frictionless, and the cord...
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A block of mass m is pulled along a rough horizontal surface by a force F that is applied at an angle e
above the horizontal. The block moves at a constant horizontal acceleration a. Express all the results in
terms of m, 0, F, a, and fundamental constants.
a. Draw and label a free-body diagram showing all the forces acting on the block.
b. Write an expression for the normal force applied by the surface to the block.
c. Determine the coefficient of kinetic friction between the block and the surface.
d. Sketch two graphs on the axes below: velocity and displacement as functions of
time, assuming the block started from rest at x = 0 and t = 0.
e. The applied force can be large enough to levitate the block above the surface.
Derive an expression for the maximum acceleration of the block that enables it
to maintain contact with the surface.
1.
Transcribed Image Text:F m A block of mass m is pulled along a rough horizontal surface by a force F that is applied at an angle e above the horizontal. The block moves at a constant horizontal acceleration a. Express all the results in terms of m, 0, F, a, and fundamental constants. a. Draw and label a free-body diagram showing all the forces acting on the block. b. Write an expression for the normal force applied by the surface to the block. c. Determine the coefficient of kinetic friction between the block and the surface. d. Sketch two graphs on the axes below: velocity and displacement as functions of time, assuming the block started from rest at x = 0 and t = 0. e. The applied force can be large enough to levitate the block above the surface. Derive an expression for the maximum acceleration of the block that enables it to maintain contact with the surface. 1.
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