Block A with a mass of ma= 7.0 kg moves on a level, horizontal table. Block A is connected to block B with a mass of mb= 6.0 kg by a light string that passes over a frictionless pulley. The coefficient of kinetic friction block A and the table is 0.25.  1. Draw two clearly labeled free-body diagrams; one for block A and one for block B.  2. Find the acceleration of the blocks.  3. What is the tension acting in the string? 4. If, instead there was no friction between block A and the table, what would be the new acceleration of the blocks ?

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8. Two 14-kg blocks are connected with a light rope pand the system is accelerating at 1.8 m/s°[Right]. The coefficient of kinetic friction between the blocks and the floor is 0.35. A F. a) Calculate the magnitude of the applied force, F,. b) Calculate the tension in the rope between block B and A.

Part A A block lies on a plane raised an angle e fram the horizantal. Three forces act upon the block: Fw, the force of gravity. Fn. the narmal force; and Fr. the force of friction. The coefficient of friction is large enaugh to prevent the block from sliding (Figure 1). Consider coordinate system a, with the x axis along e plane. Which forces lie along the axes? O Ée arly O F, anly O F. only O ři and F. O ř and F. O řa and F. O ř and řa and ř. Submit Requect Ancwor Part B Which forces lie along the axes af the coordinate system b, in which the y axis is vertical? O F anly O F. anly O F. only O F and P, O ř and F. O F, and F. O řr and Fa and Ě, Submit Request Answer Usually the best advice is to choose a coordinate system so that the acceleration of the system is directly along one of the coordinate axes. If the system isn't accelerating, then you are better off choosing the coordinate system with the most vectors along the coordinate axes. But now you are gaing to ignore that advice.…

M Draw free body diagram for the following Give the pulley & spring. W3 is movable with no friction. (Pulley & Spring have no w weight. m W1 K 3 mmm N2 W3 for the forces

Objects 1 and 2 are shown below. Object 1 has mass 20 kg, object 2 has mass 9 kg, and the kinetic coefficient of friction for object 1 on the table is 0.3. If object 1 is pushed so that it is moving away from the pulley, then find the magnitude of the acceleration of each mass and the tension in the string. motion m2 8. acceleration magnitude D. 5.304 m/s? E. 5.069 m/s F. 4.355.m/s A 4.101 m/s? В. 4.813_m/s C. 4.532.m/s? |--/ 9. tension А 38.93_N D. 44.01 N В. 46.13.N E. 41.2_N C. 42.58 N F. 48.44 N /--/

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A block rest on a horizontal board. the board is gradually tilted upward and the block just begin to slide when the angle of inclination is 21°, a. Find the coefficient of static friction between the block and the board. b. After the block starts moving it is found that it will keep sliding at constant speed when the angle tilt to 15°. Find the coefficient of kinetic friction. Draw the FBD