A 3.50 kg block is pushed along a horizontal floor by a force of magnitude 15.0 N at an angle 8-30.0° with the horizontal (see the figure below). The coefficient of kinetic friction between the block and the floor is 0.250. Calculate the magnitudes of (a) the frictional force on the block from the floor and (b) the block's acceleration. Step 1 Incorrect. ****** ***** Create the free-body diagram. Use the checkboxes to select the correct vectors as instructed above. Move the vectors to the correct starting points and orient them in the correct direction as instructed. mg le FN AT Tap the Draw free-body diagram here Key to Force Labels mg = Gravitational force 7 = Static friction FN = Normal force T = Tension = Kinetic friction F = Pushing force Point the acceleration vector in the correct direction ā 330°

A 3.50 kg block is pushed along a horizontal floor by a force of magnitude 15.0 N at an angle 8-30.0° with the horizontal (see the figure below). The coefficient of kinetic friction between the block and the floor is 0.250. Calculate the magnitudes of (a) the frictional force on the block from the floor and (b) the block's acceleration. Step 1 Incorrect. ** * Create the free-body diagram. Use the checkboxes to select the correct vectors as instructed above. Move the vectors to the correct starting points and orient them in the correct direction as instructed. mg le FN AT Tap the Draw free-body diagram here Key to Force Labels mg = Gravitational force 7 = Static friction FN = Normal force T = Tension = Kinetic friction F = Pushing force Point the acceleration vector in the correct direction ā 330°

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A boy is pushing horizontally on a Teflon block to hold it against a vertical wall. (a) If the block has a mass of 0.12 kg, what minimum magnitude of force must the boy apply if the block is not to slide down the wall? Assume a value of 0.050 for the coefficient of static friction between Teflon and the wall. Type your answer here Please type your answer to submit (b) Compare your answer in (a) to the magnitude of upward force required to simply hold the block in the boy's hand; that is, ! N determine the ratio of your answer in (a) to the upward force magnitude. of Type your answer here Please type your answer to submit ! Type your answer here Please type your answer to submit ! x10 to the power k" Of
Please, Help with question #2 Thank you.
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View Policies Current Attempt in Progress In the figure, a slab of mass m, = 44 kg rests on a frictionless floor, and a block of mass m2 = 10 kg rests on top of the slab. Between block and slab, the coefficient of static friction is 0.60, and the coefficient of kinetic friction is 0.40. A horizontal force 101 N begins to pull directly on the block, as shown. In unit-vector notation, what are the resulting accelerations of (a) the block and (b) of magnitude the slab? U = 0- %3D (a) Number i i i Units (b) Number i i j Units eTextbook and Media N Un GO Tutorial Attempts: 0 of 8 used Submit Answer Qu Save for Later tv DII
Can you please answer these. In the previous question the acceleration was found to be a= 1.675 Question 5 The situation for this problem is as explained in question 4. Block E is moving up and to the left (and Block D is moving down). The mass of Block D is 3.2 kg. The mass of Block E is 2.4 kg. The coefficient of kinetic friction between Block E and the plane is 0.5. The inclined plane is inclined at an angle of θ = 32 degrees above horizontal. Calculate the tension in the string (in units of newtons). Question 7 This question is the same as question 5 with the exceptions that The numbers have changed, and Block E is moving down and to the right (this refers to velocity) Block E is moving down and to the right (and Block D is moving up). The mass of Block D is 2.9 kg. The mass of Block E is 3.9 kg. The coefficient of kinetic friction between Block E and the plane is 0.41. The inclined plane is inclined at an angle of θ = 31 degrees above horizontal. Calculate the acceleration of…
The pipe has a mass of 770 kg and is being towed behind a truck. (Figure 1) Figure 0.4 m 8 45° 1 of 1 If the angle = 30°, determine the acceleration of the truck. The coefficient of kinetic friction between the pipe and the ground is pk = 0.20. Express your answer to three significant figures and include the appropriate units. a = Submit Part B .0 Value μÅ .0 Request Answer Units Also, determine the tension in the cable. Express your answer to three significant figures and include the appropriate units. μA ? ?
The previous step focused on friction for horizontal surfaces. As we discussed above, angled surfaces like the wedge below have different considerations. FN = mg cos(0) F₁ = mg F₁ = ? F₁ = ? Fy=mg cos(0) Specifically, we have the following considerations. 1. The normal force is not equal to mg. 2. There is a force acting along the angle of the wedge due to gravity. What is the coefficient of static friction ? Fx = mg sin(0) Let's consider the implications of this type of problem with the following examples. For all of the examples, the box has a mass of 25 kg. Imagine the box is on a surface that allows you to adjust the incline angle, 0. You find the maximum angle where the box remains stationary. That is, at any higher angle, and the box begins to slide. The static friction force at this maximum angle is 150 N. What is the angle 0 (in degrees)? Now you raise the incline to an angle of 60° greater than the angle of maximum static friction found above. At this angle, the box slides…
2. To push a 25 kg wooden box up a 30O inclined plane, a man exerts a force of 150 N parallel to the inclined plane. The wooden box slides 5 meters and the coefficient of friction between the wooden box and the inclined plane is 0.25; a. Draw the clear and neat figure of the system. b. Draw the Force diagram. c. Establish the convenient axis and reflect the component of the forces along the axis.
3. Answer the following question. Put the given, formula, solution and drawing.
(Newton's laws and their applications) A block with mass m1 slides down an inclined plane whose angle is 22 °, the coefficient of kinetic friction between the block and the plane is 0,250. The block is attached to an ideal rope that passes through two ideal pulleys until it is attached to a fixed support, as shown in figure 3. A rope leaves the axis of the movable pulley up to a block of mass m2 3 m2 m1 Figure 3. Diagram of exercise 3 A. Discuss what difference the exercise will make if one more pulley is placed on the ceiling that makes the rope connect to the rod of the movable pulley.
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