A 5 kg block was released on an inclined surface as shown below. The block slides at distance of 2m. The surface has coefficient of friction equal to 0.3. What is the network done on the block ?
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- The 500KN block shown is in contact with a 45°incline. The w coefficient of friction is 0.25. Determine the horizontal force P necessary to 1.Just start the block up the 45° incline 2.Just to prevent the motion down the incline. 3.lf P=400KN, what is the amount and direction of friction force?The 69-kg crate is stationary when the force P is applied. Determine the resulting acceleration of the crate if (a) P = 0, (b) P = 255 N, and (c) P = 503 N. The acceleration is positive if up the slope, negative if down the slope. P 20° 69 kg Hg = 0.29 μk = 0.21A block of concrete weighs 20 kg, it takes 40 N to start the block sliding on a concrete floor and 10 N to maintain sliding. Calculate the Static coefficiant of friction and calculate the kinetci coefficiant of friction My question is; what is the coefficiant of static and kinetic friction. Ive read throught the book and cant seem to find anything that explains it. I found a formula which reads F = Static coefficiant multiplied by the weight of the block. But that doesnt tell me exactly what the coeffciant of each is, Is it a constant? or does it vary based on the item being moved? Thank you.
- CC BY UBC Engineering The 6 kg block sits on the edge of a disk with a radius of r = 1.25m. a. Assuming the block does not slip, what would be the force of friction between the block and the disk тad if the disk is rotating at a constant angular velocity of 1.6 ? S F 19.2 N b. If the disk then begins to slow down and the coefficient of static friction between the block and the disk is µs 0.522, what is the magnitude of the maximum initial angular decceleration that would not cause the block to slide on the disk? rad Мaximum a —A friction sample is placed on a test ramp that pivots about Point O. When the end of the ramp is lifted to h = 1.2 ft the sample just begins to slide. With L = 3.5 ft, the coefficient of static friction is best given by a. 0.286 b. 0.481 c. 0.365 d. 0.181 O L -W hDetermine the friction force between the block and the surface after P was gradually increased from 0 to 60 N. In which phase will the block be classified (Phase 1 -no motion, Phase 2 -impending motion, or Phase 3 -in motion)? 4 W = 200 N Ms = 0.3 Mk = 0.2
- In a factory, a 500 kg pallet load of bricks is routinely moved along a smooth concrete surface by a vehicle and arope. The rope makes an angle of 20° relative to the surface. The coefficient of static friction between the pallet andthe surface is µs = 0.18. As the engineer on duty, you need to advise the factory how strong the rope needs to be.The rope manufacturer can tell you what tensile strength each rope has in units of Newtons. What rope do youchose? If you can could you possibly draw a diagram with it? Because I'm confused with how they've described the rope and its angle to the surface.Determine the coefficient of sliding friction, μk, between the block and the surface?If the uniform cabinet has weight of 200 lb, and the coefficient of static friction between the cabinet and the ground is g = 0.14, determine the minimum force P that can make the cabinet slide. Please pay attention: the numbers may change since they are randomized. Your answer must include 1 place after the decimal point and proper unit. Take g = 32.2 ft/s². Your Answer: Answer P 4 ft units A -1 ft-1 ft- 3.5 ft B
- What is the maximum height in meters a 51 lb girl can walk up the slide without supporting herself by the rails? The coefficient of static friction between the girls shoes and the slide is 0.98. y Statics and Dynamics R.C. Hibbeler 2010 Pearson Prentice Hall, Inc. 1-48 = x² 3 h -XThe rope is once wrapped in stationary dram, as shown with weights. The rope is just on the point of slipping. What is the coefficient of friction?The Syatiomn P=z00 N Psimio Tz +ve to kg. Pcosio- Find "acceleration" of the setup. Coefficient of friction is at u = 0.2 and the mass of every bod y 30 15 ty Ty