7. Three boxes with mass M1, M2, and M3 are connected by massless, inextensible strings which pass over massless, frictionless pulleys. Draw FBDS for all three boxes and write out Newton's Second Law. No need to solve anything here! T1 T2 M2 No Friction. M1 M3
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- Two blocksmịand m2 connected by a rope are being pulled by a horizontalforce F equal 160 N. Suppose that mį=10 kg,20 kg, and the coefficient of kineticm 2 =20 kg10 kgfriction between each block and the surfacem1is 0.52.A. Draw free-body diagrams of both objects.B. Find the acceleration of the systemC. Find the tension in the ropeD. What is the distance that the system ( two masses) will travel if youknow that are started from rest and final velocity is 4.5 m/sec(B) a= { FQUESTION 15 Two blocks are attached by massless strings and accelerated to the right on a frictionless horizontal surface by TB. The masses are m₁ = 2.0 kg and m2 = 3.0 kg. The acceleration of the block 1 is 5.0 m/s². Match the answers with questions. TA TB m₁ m₂ A. 25 N, to the left ✓ Tension force TA on block 1 B. none of the given ✓ Tension force TA on block 2 C. 15 N, to the left D. O E. 25 N, to the right F. 15 N, to the right G. 10 N, to the right H. 10 N, to the leftA 7.8 kg object undergoes an acceleration of 2.9 m/s^2 A. What is the magnitude of the resultant force acting on it? N B. If this same force is applied to a 4.7kg object, what acceleration is produced? m/s^2
- Plz use g = 9.8 m/s2A 2.00-kg object B is connected with a string to a 3.00-kgobject A, which is connected with a second string over a massless, frictionless pulley to a 8.00-kg object C. The strings have negligible mass and do not stretch, and the level tabletop is frictionless. Calculate the tension ?1. ?1= N Calculate the tension ?2. ?2= N Calculate the acceleration ? of the system. ?= m/s2a 139 kg asteroid toward a processing dock, 59 N, F3 39 N, 1 = 30°, and 03 = = Three astronauts, propelled by jet backpacks, push and guide = 27 N, F2 exerting the forces shown in the figure, with F1 What is the magnitude of the asteroid's acceleration? = .x O a. 0.545 m/s² Olb. *0.899 m/s2 OC. 0.747 m/s² O d.o.300 m/s²
- 13. A7.5 kg backpack is sliding across the floor. The coefficient of friction between the backpack and the floor is 0.20. Answer the following: b) What is the normal force between the backpack and the floor? Your answer: O 1.5 N O 7.4 N O 15 N O 74 NTwo masses m1=5 Kg and m2=12 Kg are connected with string and pulled with a force F=25 N that makes an angle of 53° with a smooth horizontal surface as shown in the figure. Find the tension in the string in a unit of Newton. F A. 6.258 B. 8.85 m2 m1 0 C. 2213 D. None E. 4.425