1. A 4.5-kg block rests on a rough horizontal table with a rope attached to it. The coefficient of staticfriction between the block and the table is 0.400 and the coefficient of kinetic friction between theblock and the table is 0.380. The rope is pulled at an angle of 35.0° above the horizontal. What is thehardest you can pull on the rope while the block remains stationary on the table?

Answered: Image /qna-images/answer/9a8109f4-f76a-4099-8e9f-4a8ee0e00845.jpg

Answered: A 4.5-kg block rests on a rough…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 60AP: (a) What is the minimum force of friction required to hold the system of Figure P4.74 in...

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Similar questions

(a) What is the minimum force of friction required to hold the system of Figure P4.74 in equilibrium? (b) What coefficient of static friction between the 100.-N block and the table ensures equilibrium? (c) If the coefficient of kinetic friction between the 100.-N block and the table is 0.250, what hanging weight should replace the 50.0-N weight to allow the system to move at a constant speed once it is set in motion? Figure P4.74
Two identical strings making an angle of = 30.0 with respect to the vertical support a block of mass m = 15.0 kg (Fig. P4.32). What is the tension in each of the strings?
(a) What is the minimum force of friction required to hold the system of Figure P4.74 in equilibrium? (b) What coefficient of static friction between the 100.-N block and the table ensures equilibrium? (c) If the coefficient of kinetic friction between the 100.-N block and the table is 0.250, what hanging weight should replace the 50.0-N weight to allow the system to move at a constant speed once it is set in motion? Figure P4.74
A physics major is cooking breakfast when he notices that the frictional force between his steel spatula and his Teflon frying pan is only 0.200 N. Knowing the coefficient of kinetic friction between the two materials, he quickly calculates the normal force. What is it?
A horizontal force of 95.0 N is applied to a 60.0.kg crate on a rough, level surface. If the crate accelerates at 1.20 m/s2, what is the magnitude of the force of kinetic friction acting on the crate? (See Section 4.5.)
A 25.0 kg box of textbooks rests on a ramp that makes an angle with the horizontal. The coefficient of kinetic friction is 0.25, and the coefficient of static friction is 0.35. As the angle is increased, find the minimum angle in degrees at which the box starts to slip. What is the solution and the right answer? a.) 19.3 b.) 0.92 c.) 3 d.) 12.2
A small box is held in place against a rough vertical wall by someone pushing on it with a force directed upward at 26 ∘∘above the horizontal. The coefficients of static and kinetic friction between the box and wall are 0.40 and 0.30, respectively. The box slides down unless the applied force has magnitude 29 N . What is the mass of the box?
A 6.00 kg box is pulled horizontally with a 40.0 N force that makes an angle of 50.0° with the horizontal. The coefficient of kinetic friction between the surface and the box is 0.230. What are the algebraic expressions for the normal force (FN) and the acceleration of the box?
Question 1.A man is pulling two boxes, one on top of the other, up the ramp shown by pulling on a ropeparallel to the surface of the ramp. The coefficient of kinetic friction between the ramp and thelower box is 0.444, and the coefficient of static friction between the two boxes is 0.800. What is the magnitude of the maximum acceleration the man can pull the boxes up the ramp without having the top box slip off the bottom box?
2. The coefficient of static friction between a heavy box and a ramp is 0.45. The weight of the box is 1.2x103 N, and the ramp has an incline of 16o. What minimum force is needed for the box to overcome the force of static friction?a. 1.9x 102 Nb. 3.8x102 Nc. 5.2x102 Nd. 7.4x102 Ne. 1.5x102 N
1. A 15.0 kg box is being pulled along level ground by a 75.0 N force that is directed at an angle of 20o above the horizontal. The coefficient of kinetic friction is 0.330. What is the acceleration of the box? 2. A 5.00 kg box is being pulled at constant speed up a 30o incline by a force of 45.0 N parallel to the incline. Determine the coefficient of kinetic friction between the box and the plane
A woman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. The book has a mass of m = 1.7 kg and the coefficient of static friction between her hand and the book is μs = 0.53. What is the weight of the book, Fgb in Newtons? What is the minimum force she must apply with each of her hands, Fmin in Newtons, to keep the book from falling?

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