3. The two blocks shown start from rest. The horizontal plane and the pulley are frictionless, and the pulley is assumed to be of negligible mass. Determine the acceleration of each block and the tension in the cord. 140 kg
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- The lower block of mass m2 = 3.2 kg is pulled on by a rope with a tension force of 28 N. The upper block has mass m1 = 1.8 kg. The coefficient of kinetic friction between the lower block and the surface is 0.32. The coefficient of kinetic friction between the lower block and the upper block is also 0.32. What is the acceleration of the 3.2 kg block?Two objects with masses of 2.55 kg and 4.15 kg are connected by a light string that passes over a light frictionless pulley to form an Atwood machine. (a) Determine the tension in the string. (b) Determine the acceleration of each object. (c) Determine the distance each object will move in the first second of motion if they start from rest.A constant force of ''F'' acts on a mass as shown. The mass starts its motion from rest at position 1, the unstretched length of the spring is 250 mm, and the spring modulus is k=1,5 k?/m. Neglecting the friction, determine the required force ''F'' to cause the 2−kg mass to have a speed of v2=1,5 m/s at position 2.
- It is known that the mass of the 1,2,3 block is the same, which is 2 kg. The mass of block 4 is equal to the mass of block 5. The system is at rest. Neglect the masses of all ropes, Springs, and pulleys. If the magnitude of the acceleration due to gravity. g= 10 m/s², determine: a. Rope tension I b. Rope tension 3 c. The forces acting lincluding direction and magnitude) on blocks 2 and 3 as I unit ( two blocks are seen as 1 point object) d. Acceleration of block 4 when rope 3 is cut e. The force acting on block 3 if rope 2 is cut2. In the system of connected bodies. The coefficient of kinetic friction is 0.20 under bodies B and C. determine the acceleration of each body and the tension in the cord supporting A.A brake mechanism is used to lower body A with a constant velocity of 3.0 m/s. The coefficient of friction between the brake and drum D is 0.40. Neglect the weight of the brake. Determine the mass of body A and the power dissipated by the brake. (hint: the normal force between the brake the and disk is not 1200 N)
- Blocks A and B have masses mA, and mB , respectively. Neglecting friction between all surfaces, draw the FBD and KD for each mass.A 2404 lb car is moving up a 7 degree incline as shown. Determine how many seconds will it take for the car to decelerate from 105 ft/s to 35ft/s, if the braking force is equal to 52 lb assuming that deceleration is constant and frictional effects are neglected.If the system starts from rest, Figure 1. Determine the velocities of each block, and the tension in the rope, when block C has descended 10 meters, on the inclined plane. mB = 75 kg, mC = 400 kg, and the coefficient of friction between block C and the plane is 0.2
- The two blocks (MA = 100 kg, MB = 150 kg) shown are originally at rest. Assuming that the coefficients of friction between the blocks and the inclines are us = 0.25 and uk = 0.20, determine i) acceleration of block A ii) tension in the cordThe two blocks are released from rest when r= 0.8 m and 0= 30°. Neglecting the mass of the pulley and the effect of friction in the pulley and between block A and the horizontal surface, determine (a) the initial tension in the cable, (b) the initial acceleration of block A, (c) the initial acceleration of block B.Two blocks are joined by an inextensible cable as shown. The mass of block A is 100.6 kg and the mass of block B is 260.2 kg. If the system is released from rest, determine the acceleration (in m/s2 ) of block B. Assume that the coefficient of friction between block A and the plane is μk = 0.46 and that the pulley is weightless and frictionless. Round off only on the final answer expressed in 3 decimal places. Use g = 9.81 m/s2