Assume the three blocks (m. = 1.0 kg, m = 20 kg and m = 40 ko) portrayed in the figure below move on a frictionless surface and a force F: 36w acts as shown on the 4.0 kg block. (a Determine the acceleration given this system (in m/s2 to the right). m/s2 (to the right) b) Determine the tension in the cord connecting the 4.0 kg and the 1.0 kg blocks in N). Determine the force exerted by the...
mi k2 b yi m2 Figure 5-45 Mechanical system. Assuming that mi 10 kg, m2 5 kg, b 10 N-s/m, k 40 N/m, and k 20 N/m and that input force u is a constant force of 5 N, obtain the response of the sys- tem. Plot the response curves n(t) versus r and y2(t) versus t with MATLAB Problem B-5-23 Consider the system shown in Figure 5-45. The system is at rest for t < 0. The dis placements...
A force of constant magnitude pushes 6.5-kg box 3.4 m up a vertical surface, as shown in the figure. The coefficient of friction is 0.35 and the angle θ is 30.0°. a) Determine the work done on the box by F. b) Determine the work done on the box by the force of gravity. c) Determine the work done on the box by the normal force. d) Determine the increase in gravitational potential energy of the system of the box...
A 40 kg crate is pulled 50 m along a horizontal floor by a constant force exerted by a person, Fp = 150 N, which acts as 30 degree angle. The floor is rough and exerts a friction for Ff = 40 N. Determine: a) the work done by each force acting on the crate b) the net work done on the crate
Wedge B is used to lift crate A. Crate A has a mass of 200 kg, and the mass of wedge B is negligible. The coefficient of static friction between all contact surfaces is us 0.30. Determine the force P required to begin moving the crate upward. (Ans. P 1,980 N) 3. 15°
16. A 325 N force is applied to a 50.0 kg crate on a flat horizontal surface. What coefficient of friction would be required to keep the crate accelerating at 2.00 m/s under the action of the 325-N force? A) 0.250 B) 0.321 C) 0.459 D) 0.663 E) 0.747
34) According to Le Chatelier's Principle, if more reactant molecules is added to the system HNO, -H- + NO, A) equilibrium shifts to right to relieve the stress added to the system B) equilibrium shifts to the left to relieve the stress added to the system C) no change D) none of the above I
A boat with mass of 1 200 kg is traveling at 12 m/s. What is the magnitude of the force required to stop the boat if it undergoes a displacement of 85 m? a. 1 000 N b. 8 500 N c. 2 000 N d. 170 N
3.5m 200kg 75kg 21. The medieval catapult consists of a 200 kg beam with a heavy ballast at one end and a projectile of 75.0 kg at the other end. The pivot is located 0.5 m from the ballast and a force with a downward component of 550 N is applied by prisoners to keep it steady until the commander gives the word to release it. The beam is 4.00 m long and the force is applied 0.900 m from...
3. (20 pts.) Two blocks of masses m,-10 kg and m2 = 40 kg are connected by a light string as shown below. The coefficient of kinetic friction between m; and the table is 0.375 and the system starts from rest; Draw a free body diagram for each block and determine; a. The normal force acting upon mj. b. The system's acceleration. c. The tension in the string. d. The amount of time required for me to reach the floor...