Figure < 2 of 3 Blocks A and B have a masses of 130 kg and 280 kg, respectively.(Figure 2) The coefficient of static friction between A and B and between B and C is 0.290. The coefficient of static friction between the rope and peg E is 0.490. Pulley D rotates freely, and P = 30.0 N. If = 60.0 degrees, what is the smallest magnitude, T, of tension, T, that causes block B to move? Express your answer numerically in kilonewtons to three significant figures. ▸ View Available Hint(s) 1 ΑΣΦ vec A T= 1.592 B Submit Previous Answers Incorrect; Try Again; 4 attempts remaining ? ΕΝ

Figure < 2 of 3 Blocks A and B have a masses of 130 kg and 280 kg, respectively.(Figure 2) The coefficient of static friction between A and B and between B and C is 0.290. The coefficient of static friction between the rope and peg E is 0.490. Pulley D rotates freely, and P = 30.0 N. If = 60.0 degrees, what is the smallest magnitude, T, of tension, T, that causes block B to move? Express your answer numerically in kilonewtons to three significant figures. ▸ View Available Hint(s) 1 ΑΣΦ vec A T= 1.592 B Submit Previous Answers Incorrect; Try Again; 4 attempts remaining ? ΕΝ

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.24P: A uniform plank is supported by a fixed support at A and a drum at B that rotates clockwise. The...

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The coeffient of static friction between the uniform bar AB of weight W and the ground is 0.45. Find the smallest angle and the corresponding force P that would initiate simultaneous tipping and sliding of the bar.
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Block A has a mass of m, = 58.0 kg and rests on a flat surface. (Figure 3)The coefficient of static friction between the block and the surface is uA = 0.260. The coefficient of static friction between the rope and the fixed peg B is 0.290. The width of the block is d = 0.250 m. Find the greatest mass, mc, that weight C can have such that block A does not move Express your answer numerically in kilograms to three significant figures. • View Available Hint(s) Nν ΑΣφ vec mc = kg
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Example 1: A 200 Ib block is at rest on a 30° incline. The coefficient of friction between the block and the incline is 0.20. Compute the value of a horizontal force P that will cause motion to impend up the plane. Given: e = 30° W = 200 pounds (motion) 200# Unknowns: N, P, F 300 30 N
A 200 lb block is in contact with a plane inclined at 30 degrees to the horizontal. A force P, parallel to and acting up the plane, is applied to the body. If the coefficient of static friction is 0.20, find: a. the value of P to just cause the motion to impend up the plane b. the value of P just to prevent motion down the plane c. the magnitude and direction of the friction force F if P= 80 lbs
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A 30 KN of force at one end just supports a weight of 30,000 KN load at the other end. If the rope is run three times around a circular post, what is the coefficient of friction between the rope and the post?
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