MA-6kg M3 = 2kg a). Find the acceleration of each block b). the tension in the connecting string c). the position of the mass A after 0.4 s and d). the velocity of mass A at 0.4 s
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- The leg and cast in Figure P4.40 weigh 220 N (w1). Determine the weight w2 and the angle needed so that no force is exerted on the hip joint by the leg plus the cast. Figure P4.40Two blocks of mass m 15 kg and mp 10 kg are connected by a massless string that passes over a pulley as shown in the figure below. The system is in static equilibrium. There is friction between Block A and the surface (u-0.7) but neglect the friction between the string and the pulley. What is the static friction force on Block A? Pulley A. String B. 98.0 N 49.0 N O 147 N )103.0 N OONThe following figure shows a 32.5 kg mass box suspended by 3 strands of negligible mass. Determine a pull on each wire
- A 300 N girl and a 400 N boy stand on a 16-m platform supported by posts A and B as shown, The platform itself weighs 200 N. What are the forces exerted by the supports on the platform? Draw a free body diagram.A 6.8 kg object is tied to rope that is attached on the ceiling. Solve the following problems.4. The two boxes are connected by a heavy uniform rope with a of 4.00 kg. An upward force of 200 N is applied as F = 200 N mass shown. (a) Draw three free-body diagrams: one for the 6.00-kg block, one for the 4.00-kg rope, and another one for the 5.00-kg 6.00 kg block. For each force, indicate what body exerts that force. (b) What is the acceleration of the system? (c) What is the tension at the top of the heavy rope? (d) What is the tension at the midpoint of the rope? 4.00 kg 5.00 kg
- A 4.00-kg block rests between the floor and a 3.00-kg block as shown in the above figure. The 3.00-kg block is tied to a wall by a horizontal rope. If the coefficient of static friction is 0.800 between each pair of surfaces in contact, what force must be applied horizontally to the 4.00-kg block to make it move?1 m A 10.3 m D B Figure 5The system shown in the diagram is in equilibrium. The object hanging from the end of the strut S weighs 513 kg and the strut itself weighs 107 kg. What is the horizontal component of the force exerted on the strut at point P? A) 797.67 N B) 12037. N C) 8681.8 N D) 7817.2 N
- The two planks are connected together by cable BC and a smooth spacer DE. Determine the reactions at the smooth supports A and F.and also find the force developed in the cable and spacer. Match the answers. 100 lb 200 lb -2 ft--2 ft- ft2 ft- 182 160 180 1. reaction at A= 168 2. reaction at F = 176 3. Foc- 128 4. FDE 5. 150 120 140Q1: The cable AB supports three vertical loads as shown in next figure. Compute the resultant of these three forces and locate it with respect to point (A). L4m 5m B. 20N 40 N 30 NSituation 1. The wheel barrow at rest containing stones has a force of 1000 N. A man exerted a force of 500 N to push it. Given: Solution: Answer: Question 1. Will he able to move the wheel barrow? Situation 2. Suppose another man tried to help him and exerted a force of 5OON. Given: Solution: Answer: Question 2. Will they able to move the whieelbarrow? Situation 3. Another man saw their struggle in pushing the wheel barrow. He tried to help them. He exerted a force of 400 N. Given: Salution: Answer: Question 3. Will the three of them move the wheelbarrow? Situation 4. A box is at rest and a force of 250 N is applied to it. If the frictional force is 200 N, determine the net force. Given: Solution: Answer: