Consider the system shown in the figure (Figure 1) with MA = 7.5 kg and mB...
Problem 4.86 Part A Consider the system shown in the figure (Figure 1) with mA 85 kg and m angles 8A -59 and eB 32 135kg The In the absence of friction, what fore F would be required to pull the masses at a constant velocity up the fixed inclines? Submit Part B The force F is now removed. What is the megnitude of the acceleration of the two blocks? Submit Part C What is the direction of the acceleration...
Problem 2: (6 pts) ) Two masses are connected by a string as shown in the figure below. Mass mB = 2.00 kg moves up while mA 12.0 kg moves down a frictionless inclined. The pulley is frictionless and has a mass M-2.00 kg, and a radius R-0.200 m (1= ½ MR) (a) Draw the free body diagram for the masses and pulley separately. (b) Use Newton's Second Law of Motion to find the resulting acceleration (2pts) (2pts) (2pts) of...
Two boxes with masses of mA = 2.4 kg and mB = 4.4 kg are connected to each other by a light and non-stretchable rope that passes over a light and smoothly rotating runner. The tracks are given a small initial speed in the direction of the indicated speed. The sliding coefficient between the boxes and the levels is μ = 0.28 (angles are ) a) Determine the acceleration of the tracks. b) Determine how much friction between box B...
3. An Atwood machine consists of two masses, mA 4.3 kg and mB 9.7 kg, connected by a cord that passes over a pulley free to rotate about a fixed axis. The pulley is a hoop of radius Ro 0.75 m and mass M-3.2 kg. mB Im If mB is initially h-2.4 m above the table and released from rest, with what speed will it hit the table? (Hint: Use energy considerations and note that mass ma will go up...
An Atwood machine consists of two masses, mA= 63 kg and mB = 71 kg , connected by a massless inelastic cord that passes over a pulley free to rotate (Figure 1). The pulley is a solid cylinder of radius R = 0.40 mm and mass 5.0 kg. [Hint: The tensions FTA and FTB are not equal.] Acceleration of each mass is 0.57 m/s2 What % error would be made if the moment of inertia of the pulley is ignored?...
In the figure above, block A has mass mA = 25 kg and block B has mass mB = 10 kg. Both blocks move with constant acceleration a = 2 m/s2 to the right, and the coefficient of static friction between the two blocks is = 0.8. The static frictional force acting between the blocks is (A) 20 N (B) 50 N (C) 78 N (D) 196 N E) 274 N
The figure below shows two masses m1=5.2 kg and m2=3.4 kg. The lower surface is frictionless but the surface between the blocks has an unknown coefficient of static friction µs. If a horizontal force of magnitude F=59 N acts on the top block and the bottom block moves along with the top block, what is the magnitude of the static friction force which acts between the two blocks? ma Іш U = 0 -X
Item 1 Two massos mA = 2.0 kg and mp - 4.0 kg are on inclines and are connected together by a string as shown in the figure(Figure 1). The coofficient of kinetic friction between each mass and its incline is pk = 0.30. Part A If mA moves up, and me moves down, determine their acceleration Express your answer using two significant figures. 110 AED ? = m/s Submit Request Answer Figure 1 of 1 Provide Foedback WIN SI...
Two masses mA = 2 kg and mB = 1 kg are connected by a stnall pulley Mass maks on an inclined plane at angle e-π/4 radians, and mB is allowed to hang freely. (a) Suppose the string has length 10 m. Take a coordinate system in which the pulley is at the origin. What is the potential energy of the system as a function of the height of mass mg? (b) Find the acceleration of mass ma (either using...
Two blocks, connected together by a thin but strong cord, are placed on a ramp as shown in the figure. The angle of the ramp is ?=30 degrees , the masses of the blocks are mA = 1.00kg and mB = 2.00kg, and the coefficient of static and kinetic friction between boxes and ramp are µs = 0.500 and µk = 0.200. The gravitational acceleration is 9.8m/s2 . The mass of the cord is negligible. The cord does not stretch...