e (a)the acceleration of the masses (b) the tension in the string.
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- The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016, determine the force F required to advance the bar at a constant speed.Question A 4.0 kg mass, ml, hangs from a rope that runs over a massless frictionless pulley and is connected to a 6.0 kg mass, m2, resting on the surface at an incline of 0 = 35 as shown in Figure (1). The coefficient of static friction between the incline and m2 is 0.09, and the coefficient of kinetic friction is 0.07. Initially, the system is at rest. Calculate (a)the acceleration of the masses (b) the tension in the string. pulley m- Fig. 1Block A is sliding down and pulling up both Block B and Block C. Find the accelerations of each body and the tension of rope if the coefficient of friction at Block A is 0.25 and at Block C is 0.35 A= 2000b B= 500 b C: 1000lb 314 A
- A block of mass M1 resting on an inclined plane is connected by a string and pulleys to another block of mass M2 as shown in Fig. Find the tension in the string and acceleration of the blocks. Assume the coefficient of friction between the blocks M1 and the plane to be 0.2. M1=1500N , M2=1000N . Angle of inclined glane = 45 degreesQuestion 2 Consider the two blocks shown above, connected together by a massless rope around a massless, frictionless pulley. The mass of the top block is m₁ = 7.00 kg and the mass of the bottom block is m₂ = 14.8 kg, and all surfaces have a coefficient of kinetic friction = 0.350. If the bottom block is pulled to the left with a force of T=197 N, what is the acceleration of the bottom block?2 Your answer is partially correct. Try again. In the figure, a slab of mass m, = 40 kg rests on a frictionless floor, and a block of mass m, = 9 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 F of magnitude 102 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) the slab? u = 0- (a) Number T-7.4 -7.4 Units m/s^2 (b) Number i+ Units m/s^2 -0.88 Click if you would like to Show Work for this question: Open Show Work SHOW HINT LINK TO TEXT LINK TO SAMPLE PROBLEM LINK TO SAMPLE PROBLEM VIDEO MINI-LECTURE 10:50 PM search ENG 4/4/2021 ond 111Pgup) pri sc DOUSE insert dele home break 13) 23 bac 3 5. 4 R.
- A uniform ladder of length 12 mand mass 30 kg rests with one ed on rough horizontal ground and the other end against a smooth vertical wall. The ladder is indined 65°. The coefficient of friction, H, between the ladder and the ground is 0.35. A woman of mass 65 kg is slowly dimbing up the ladder. She wants to know how far up the ladder she can dimb safely. Drawa diagramshowing all the force adting on the ladder when the woman is x metres fromthe foot of the ladder. (a) (b) Find the reaction of the ground on the ladder. (c) Show that the reaction of the wall on the ladder is less than 33.25g By taking moments about the base of the ladder, find how far up th ladder she an dimb safely. (d)Q1. m-1 kg m,=4 kg The mechanism set up with m,, m, and weightless pulleys is as shown in the figure. Then, the masses are released. Static and kinetic friction between the inclined plane and m, are 0.6 and 0.5 respectively. What are the accelerations of m, and m,? (g = 10 m / s². Frictions and mass of the pulley are ignored.) Q2. 300 m/s .*........ yatay 100 m/s 320 m x=? A plane is flying horizontally at an altitude of 320 m with 300 m/s speed. It launches its bomb with 100 m/s speed relative to the plane as shown. How many meters away from the castle should the plane launch its bomb to hit the castle. (g=10 m/s², sin370=0.6; cos37°=0.8) Q3. 2 kg The object in the frictionless cone in the figure is making a uniform circular motion. Calculate, a) the normal force that the cone exerts on the object, b) centripetal force applied to the body, c) Find the speed of the object.1. A block of mass m slides down on the surface of a wedge of mass M (see figure below). If there are no frictions between the block and the wedge, and between the wedge and the table, find the acceleration of the wedge, the normal force between the block and the wedge, and the acceleration of m relative to the wedge. Discuss your results in the limit of m<Consider the pulley system below in which a stack of blocks of mass m1 and m2 is being pulled by a string connected to a block of mass m3, draped over a pulley. Assume the mass of the pulley and the friction in its bearing are negligible. The string is lightweight and does not stretch. Suppose that there is no friction between block 2 and the horizontal surface. However there is friction between blocks 1 and 2 with coefficients of kinetic and static friction Hk and µs, respectively. m2 m3 Answer the following questions, following the problem-solving checklist as you present your work. 1. Assume that the three masses are such that blocks 1 and 2 do not slide relative to each other. Given m1, m2, m3, µk, and µs, find the magnitude of the friction force between blocks 1 and 2. 2. Given the friction coefficients and the masses of blocks 1 and 2, for which values of mass m3 will blocks 1 and 2 slide on each other? 3. Are there values of mị and m2 for which the two blocks will remain stuck…T my F Two blocks connected by a rope of negligible mass are being dragged by a horizontal force F. Suppose that F=68.0 N, mị = 12.0kg, m2 = 18.0kg, and %3D the coefficient of kinetic friction between each block and the surface is 0.1. (a) Draw a free-body diagram for each block. (b) Find the acceleration of the system. (C) Determine the tension T of the rope between the blocks.The Figure Q2 shows a ball and block with masses M1=10kg and M2, respectively. The block and ball are connected with a cable and pulley system. The coefficient of static friction for all contacting surface is 0.3. i) Determine the range of the mass of block so that the system is in M1 = 10 Kg equilibrium. ii) Determine the tension in the cable. M2 Hs= 0.3 Comment on your answer at question 2(i). 75%SEE MORE QUESTIONS