A block with a mass of m rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction. The second acts on the body at an angle e measured from horizontal, as shown. If necessary, use Fs and Fk for the forces of static and kinetic friction. F2 m * Please use the interactive area below to draw the Free Body Diagram for this block, assuming it is in static equilibrium. 1 Add Force O Reset All x- m

A block with a mass of m rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction. The second acts on the body at an angle e measured from horizontal, as shown. If necessary, use Fs and Fk for the forces of static and kinetic friction. F2 m * Please use the interactive area below to draw the Free Body Diagram for this block, assuming it is in static equilibrium. 1 Add Force O Reset All x- m

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter6: Applications Of Newton’s Laws Of Motion

Section: Chapter Questions

Problem 5PQ

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Problem 1: A block with a mass of m rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction. The second acts on the body at an angle 0 measured from horizontal, as shown. If necessary, use Fs and Fk for the forces of static and kinetic friction. L. F Please use the interactive area below to draw the Free Body Diagram for this block, assuming it is in static equilibrium. FBD : Fn, F1, Fg, F2, Fs, Fk, a, v 45, 0, 90, 135, 180, 225, 270, 315, 0 Force Labels: Angle Labels: m.
The diagram below shows an object of mass m= 20kg being acted upon by a force F=50N at an angle of θ=30o. The coefficient of kinetic friction between the object and the surface is 0.100. a.Draw a Free Body diagram for the object. Be sure to show all forces as well as the reference x,y axis. and Using Newton’s 2nd law, write the force equations for both the x and the y directions. Write these equations in terms of the letters m, F, θ, FN, g, f (little f stands for the friction force). X-direction: _______________________________________________________________ Y-direction:________________________________________________________________ b.Solve for the Normal Force c .Use your answer from part b to find the frictional force. d .Solve for the acceleration of the object. e.If this object was originally moving at 4 m/s, how fast would it be moving after 8 seconds? f .How far will…
Problem 5: Ablock with a mass of m rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction. The second acts on the body at an angle e measured from horizontal, as shown. If necessary, use Fs and Fk for the forces of static and kinetic friction. F m -F, Please use the interactive area below to draw the Free Body Diagram for this block, assuming it is in static equilibrium. 1 Add Force O Reset All m. Ftotal,x: Ftotal,y:
A block with a mass of m rests on a frictionless surface and is subject to two y forces acting on it. The first force is directed in the negative x-direction. The second acts on the body at an angle e measured from horizontal, as shown. If necessary, use Fs and Fk for the forces of static and kinetic friction. x- m Please use the interactive area below to draw the Free Body Diagram for this block, assuming it is in static equilibrium. 1 Add Force O Reset All F1 v 180 vx F2 v 315 v Fg v 270 vx : Fn Fn v 90 v Fs v0 F1 Fs : Fg F2 Ftotal.x: + (pos) Ftotal,y: - (neg) The surface is frictionless. Please think about whether frictional forces should be considered here. It looks like there is at least one force that is expected in the drawing, but isn't in the right direction.
A horizontal force, F1, and a force F2 acting at an angle of 0 to the horizontal, are applied to a block of mass m. The block is moving to the right at a constant velocity across a rough surface. y F, Use Fk to denote the force of kinetic friction. m Please use the interactive area below to draw the Free Body Diagram for the block. 1 Add Force S Reset All Fn v 90 vx Fg v 270 vx F1 v0 Fk v 180 vx Fn Fk F1 Fg Ftotal,x:0 Ftotal,y: 0 Submit I give up! Hint Feedback
A block is resting on a wooden plank. There is a hinge on one end of the plank which allows the other end to be lifted to create an angle, θ, with respect to the horizontal as shown in the figure. The coefficient of static friction between the block and the plank is μs. Please use the interactive area below to draw the Free Body Diagram for the block. Use Fs to denote the force of static friction. The angle θ is slowly increased. Write an expression for the angle at which the block begins to move in terms of μs. If a student measures that the block begins to move at an angle of θ = 25°, what is the numerical value of the coefficient of static friction, μs?
A block with a mass of m rests on a frictionless surface and is subject to two torces acting on it. The first force is directed in the negative x-direction. The second acts on the body at an angle e measured from horizontal, as shown. If necessary, use Fs and Fk for the forces of static and kinetic friction. m > * Please use the interactive area below to draw the Free Body Diagram for this block, assuming it is in static equilibrium. 1 Add Force O Reset All Fn F1 v 180 v F2 v 315 v Fg v 270 v x En v 90 vx Fs v0 F1 Fs F2 Fg Ftotal,x: 0 Ftotal,y: 0 The surface is frictionless. Please think about whether frictional forces should be considered here. It looks like there is at least one force that is expected in the drawing, but isn't in the right direction.
Problem #1: (a) Draw the free body diagrams for the two blocks pictured below. There is friction on the ramp. 40° (b) Draw free body diagrams for the two situations involving a block of ice being pulled and pushed with an equal force and angle. 25° 25° (c) Is the normal force up on the block of ice from the floor equal in the two situations in (b)? If they are equal, explain why. If they are not, explain why and state which is larger.
A block with a mass of m = 1.5 kg rests on a wooden plank. The coefficient of static friction between the block and the plank is μs = 0.44. One end of the board is attached to a hinge so that the other end can be lifted forming an angle, θ, with respect to the ground. Assume the x-axis is along the plank as shown in the figure. a)Please use the interactive area below to draw the Free Body Diagram for this block, assuming it is in static equilibrium. If necessary, use Fs for the force of static friction, and Fk for the force of kinetic friction. b)Write an expression for the maximum angle, θm, that the board can make with respect to the horizontal before the block starts moving. (Write in terms of the given parameters and variables available in the palette.) c) Solve numerically for the maximum angle, θm, in degrees.
Review The figure(Figure 1)shows the normal force as a function of the angle 0 for the suitcase shown in the figure(Figure 2). Part A Determine the magnitude of the force F for each of the three curves shown in the figure. Give your answer in terms of the weight of the suitcase, mg. Express your answers in terms of the given quantities separated by commas. Fa, Fb, Fe = Submit Previous Answers Figure 1 of 2 Correct mg Provide Feedback (a) Next > mg 21 (b) (c) 30 60 90 e (degrees) Normal force, N
A block with a mass of m = 22 kg rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction with a magnitude of F1. The second has a magnitude of F2 and acts on the body at an angle θ = 15° measured from horizontal, as shown. 1). Please draw the Free Body Diagram for this block, assuming it is in static equilibrium? 2)Write an expression for the component of net force, Fnet,x, in the x-direction, in terms of the variables given in the problem statement. 3)Write an expression for the magnitude of the normal force, FN, acting on the block, in terms of F2 and the other variables of the problem. Assume that the surface it rests on is rigid. 4). The two forces change such that F1 = 11 N and F2 = 19 N. Based on this change, the block may no longer be in static equilibrium. Find the block's acceleration in the x-direction, ax, in meters per second squared.
The diagram below shows an object of mass m= 20kg being acted upon by a force F=50N at an angle of θ=30o. The coefficient of kinetic friction between the object and the surface is 0.100. Draw a Free Body diagram for the object. Be sure to show all forces as well as the reference x,y axis and by Using Newton’s 2nd law, write the force equations for both the x and the y directions. Write these equations in terms of the letters m, F, θ, FN, g, f (little f stands for the friction force). X-direction: _______________________________________________________________ Y-direction:________________________________________________________________ b) Solve for the Normal Force c)Use your answer from part C to find the frictional force. Please answer all three parts