Mass of the plane 150,000 kg Initial velocity 0 Final velocity 100 m/s Distance traveled 500 m The plane is propelled by four engines. 9 m 30 m -1 attachment
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- The electric motor is used to pull a train at a maximum constant speed of 60 km/h. This motor has a power of 340 kW. The train is pulled directly up the inclination of 1 in 180. The tractive resistance against the motion is 80 N.1.Draw the free body diagram representing all forces acting on the train2.Calculate the mass of the train.Q4) A commercial airliner with four jet engines, each producing 90 kN of forward thrust, is in a steady, level cruise when engine number 3 suddenly fails. Determine and locate the resultant of the three remaining engine thrust vectors. Treat this as a two-dimensional problem. 90 kN 9 m 12 m 12 m 90 kN 9 m 90 kN 1 Good luck Prepared by: Dr. Eng. Ihsan A. Al-SamarraiFind the force constant of the spring. Assume that the angle that the ramp makes with the horizontal is 22°. Recall that the mass of the puck is 0.180 kg and q= 9.80 m/s².
- EXAMPLE: 2T 1.2 m 9. The jet aircraft has a total mass of 22 Mg and a center of mass at G. Initially at take-off the engines provide a thrust 27 = 4kN and T' = 1.5kN.Determine the acceleration of the plane and the normal reactions on the nose wheel and each of the two wing wheels located at B. Neglect the mass of the wheels and, due to low velocity, neglect any lift caused by the wings. 2.5 m 2.3 m B -3 m- 6 m- DEWQ2/ A Body of weight of 40 Kg is pulled along a rough horizontal plane by pull of 20 N acting at an angle of 14 with the horizontal. Find the friction force and normal force (reaction)? 20 N 40 KgIf there is n friction in the system, the Lagrange's equation will be based only on kinetic energy and protentional energy only. Select one: O True O False III O
- A spring is stretched 3 cm by a force of 6 N. Thus, according to Hooke's Law, the spring DO = 200 N. Assume as usual, that r = 0 is the equilibrium position. constant is k 0.03 A mass of 8 kg is now attached to the end of the spring, and it is set in motion with initial position xo = 0 and with initial velocity 10 (m) to the left. ( So, v(0) = -10(m).)Consider the jet-powered drag car shown in (Figure 1) with mass m = 900 kg and a center of mass at G. At the start, the jet turbine exerts a horizontal thrust of P = 25 kN on the dragster. Neglect the friction force in the following calculations. Figure ZAY A Front wheel center line 2.8 m 1.3 m B! Rear wheel center line 0.8 m P 1 of 1 > 1.2 m Part A Determine the acceleration of the jet-powered drag car. Express your answer to three significant figures and include the appropriate units a = Submit Part B NA = Value Submit Part C μA NB = Request Answer Determine the vertical reactions at the front wheels A. Express your answer to three significant figures and include the appropriate units HÅ Value Request Answer Units μᾶ www Value Units Determine the vertical reaction at the rear wheels B. Express your answer to three significant figures and include the appropriate units ? Units wwwww ? ?Find the height of sack upto to which it is raised to gain potential energy of 3222 J Mass of sack is 66 kg
- Q-4) The rod, having a weight of 16N and a length of 2.5m, contains a joint at O which is 0.5m distant from point B. The other end of the rod is attached to a 2,5 m- 0,5 m spring that is compressed by 4cm A with Ks= 250N/cm. At this moment the rod is horizontal. When released; calculate it's angular velocity (passing by the vertical position) and reaction forces at the joint 0.Find the mass of the lighter body m. Take the weight of the plate, the acceleration due to gravity, the mass of the heavier body and the distance of the support from the care (L,g,M,D) to be knownQ3: A diesel engine that has a bore D=110 mm and the stroke S=120mm. the length of the connecting rod is /=210mm and the masses of the piston assembly and the connecting rod are 3.5 kg and 2.3 kg respectively. 1. Determine he position of the center of mass of the connecting rod knowing that mc-tr =0.29 mcr. 2. Calculate the forces loading the crank pin and the connecting rod bearing at 2400 rpm for the crank slider position corresponding to a crank angle 110 (during intake) knowing that the cylinder pressure at this position is 0.09MPA. the crankcase pressure may be assumed to be 0.1Mpa. specify the directions of the forces with respect to the crank axis and with respect to connecting rod axis.