A block with mass M is pushed against a vertical wall with a force of magnitude P and directed at an angle 0 below the horizontal. The wall and the block experience friction (coefficient of static friction is Hs). Is it possible to keep the block from sliding downward? And if so, how exactly? Use Newton's 2nd law to support your answer.
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- The block shown in the figure is sliding along a frictionless horizontal surface The block's mass is m = 4.80 kg,the magnitude of the applied force is F = 26.5 N, and the angle of the applied force F from the horizontal is θ = 28.0°. Determine the magnitude n of the normal force acting on the block.Two blocks of mass M and m are sitting on a surface inclined at angle θ. The blocks are touching. The coefficient of static friction between the smaller block and the surface is μs1, and the coefficient of static friction between the larger block and the surface is μs2. Formulate a mathematical inequality for the condition that no sliding occurs. There may be more than one inequality.of air Question 10. A 16.2-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 65.1 N and is directed at an angle of 30° above the horizontal. Determine the coefficient of kinetic friction. Ans: 0.446 Question 11. A person in tui
- Momo with mass m is sliding down an inclined plane that makes an angle O relative to the horizontal. The coefficient of kinetic friction between Momo and the inclined plane is uk. Obtain an expression for Momo's acceleration along the incline. Assign a rotated Cartesian plane so that the acceleration is along the positive x-axis and the normal force is along the positive y-axis. The component of the weight parallel to Momo's acceleration is wy = mg The magnitude of the frictional force is f = Hk The normal force on Momo is n = mg 0. With these expressions and applying Newton's second law, we arrive at an expression for Momo's acceleration: a =A 1,500-N crate is being pushed across a level floor at a constant speed by a force F of 370 N at an angle of 20.0° below the horizontal, as shown in the figure a below. F 20.0° / b 20.0° (a) What is the coefficient of kinetic friction between the crate and the floor? (Enter your answer to at least three decimal places.) 0.220 X Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error.You are a bully. You pin a 48 kg dweeb to a wall so that his feet aren't touching the ground. Your arm is extended so that it makes an angle 28 degrees with the horizontal. The dweeb's back is so sweaty with fear that there is no friction between his back and the wall. What is the magnitude of the force , in N, you must apply to keep the dweeb in equilibrium? (Use g = 10 m/s2) This scenario is represented schematically below. Unfortunately for you, years later the dweeb is your boss and he makes your life miserable. (Please answer to the fourth decimal place - i.e 12.3445)
- A heavy sled is being pulled by two people, as shown in the figure. The coefficient of static friction between the sled and the ground is H = 0.603, and the kinetic friction coefficient is µ = 0.403. The combined mass of the sled and its load is m = 336 kg. The ropes are separated by an angle o = 25.0°, and they make an angle 0 = 31.1° with the horizontal. Assuming both ropes pull equally hard, what is the minimum rope tension required to get the sled moving? minimum rope tension: If this rope tension is maintained after the sled starts moving, what is the sled's acceleration? m/s2 acceleration:The block shown is pulled across the rough horizontal surface at a constant speed by the force shown. If m=10 kg, F=18, and e = 37°, what is the coefficient of kinetic friction between the block and the surface? consider g = 10 m/s. %3D %3D F m A. 0.3612Question 1
- In the figure, two blocks are connected over a pulley. The mass of block A is 7.30 kg and the coefficient of kinetic friction between A the incline is 0.150. Angle 8 of the incline is 49.0°. Block A slides down the incline at constant speed. What is the mass of block and 8? Frictionless, massless pulley- Number i Units BIn the figure here, a box of Cheerios (mass mc = 1.70 kg) and a box of Wheaties (mass mw = 2.60 kg) are accelerated across a horizontal surface by a horizontal force applied to the Cheerios box. The magnitude of the frictional force on the Cheerios box is 2.10 N, and the magnitude of the frictional force on the Wheaties box is 4.60 N. If the magnitude of F is 12.7 N, what is the magnitude of the force on the Wheaties box from the Cheerios box? Number i UnitChapter 06, Problem 026 GO Z Your answer is partially correct. Try again. The figure shows three crates being pushed over a concrete floor by a horizontal force F of magnitude 631 N. The masses of the crates are m, = 31.0 kg, m, = 10.0 kg, and m3 = 20.0 kg. The coefficient of kinetic friction between the floor and each of the crates is 0.700. What is the magnitude F32 of the force on crate 3 from crate 2? Number Units IN the tolerance is +/-2% Click if you would like to Show Work for this question: Open Show Work Question Attempts: Unlimited SAVE FOR LATER SUBMIT ANSWER 10:46 PM to search ENG 4/4/2021 13) pri sc pause (brea delte 17 insert %23 3 4 5. backspac R