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Question 3 A 20-Mg railroad car moving at 4 km/h is to be coupled to a...
Upload Choose a File 10 pts Question 3 An 80-Mg railroad engine A coasting at 6.5...
Upload Choose a File 10 pts Question 3 An 80-Mg railroad engine A coasting at 6.5 km/h strikes a 20-Mg flatcar C carrying a 30-Mg load B which can slide along the floor of the car( 0.25). The flatcar was at rest with its brakes released Instead of A and C coupling as expected, it is observed that A rebounds with a speed of 2 km/h after the impact. Draw impulse-momentum diagrams that could be used to determine (a) the...
A railroad diesel engine weighs four times as much as a freight car. If the diesel...
A railroad diesel engine weighs four times as much as a freight car. If the diesel engine coasts at 5 km/h into a freight car that is initially at rest, show that the speed of the coupled cars is 4 km/h.
One train car of mass 50,000 kg (50 Mg) is moving 6.0 m/s to the south...
One train car of mass 50,000 kg (50 Mg) is moving 6.0 m/s to the south on a frictionless track and couples with another car of mass 20,000 kg (20 Mg). The final velocity of the now-coupled cars is 1.8 m/s to the south. Find the velocity of the second car before the coupling. (Hint: The direction is important!)
A railroad car of mass 2.30E+4 kg moving with a speed of 3.00 m/s collides and...
A railroad car of mass 2.30E+4 kg moving with a speed of 3.00 m/s collides and couples with two other coupled railroad cars each of the same mass that are already moving in the same direction at a speed of 1.50 m/s. What is the speed (in m/s) of the three coupled cars after the collision? Tries 0/3 How much kinetic energy (in J) is lost in the collision? Tries 0/3
A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and couples with two coupled railroad cars, each of the sa...
A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and
couples with two coupled railroad cars, each of the same mass as
the single car and moving in the same direction at 1.24 m/s.
b)
How much kinetic energy is lost in the collision?
USE THIS DATA:
17400 kg; 3.27 m/s; (help me see how you get the correct answer
of 2.39e4 J.
16-4 A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and...
A railroad car of mass 2.45* 10^4 kg is moving with a speed of 4.18 m/s....
A railroad car of mass 2.45* 10^4 kg is moving with a speed of 4.18 m/s. It collides and couples with three other coupled railroad cars, each of the same mass as the single car and moving in the same direction with an initial speed of 2.09 m/s.
15-6. A train consists of a 50-Mg engine and three cars, each having a mass of...
15-6. A train consists of a 50-Mg engine and three cars, each having a mass of 30 Mg. If it takes 80 s for the train to increase its speed uniformly to 40 km/h, starting from rest, determine the force T developed at the coupling between the engine E and the first car A. The wheels of the engine provide a resultant frictional tractive force F which gives the train forward motion, whereas the car wheels roll freely. Also, determine...
A train consists of a 50 Mg engine and three cars, each having a mass of...
A train consists of a 50 Mg engine and three cars, each having a mass of 30 Mg. If it takes 80 s for the train to increase its speed uniformly to 43 km/h, starting from rest, determine the force T developed at the coupling between the engine E and the first car A. The wheels of the engine provide a resultant friction tractive force F which gives the train forward motion, whereas the car wheels roll freely. Also, determine...
4. A railroad car that weighs 20,000 lb is traveling eastward with a velocity whose magni-...
4. A railroad car that weighs 20,000 lb is traveling eastward with a velocity whose magni- tude is 5 fps. A second car, on the same track, that weighs 40,000 lb is also traveling in an easterly direction with a velocity of 7.81 fps. When the cars collided, they became coupled together and then both cars moved with the same velocity. If friction between the cars and the rails is neglected, what were the magnitude and the direc- tion of...
35. A car moving at 20 km/hr skids 10 m with locked brakes before coming to...
35. A car moving at 20 km/hr skids 10 m with locked brakes before coming to rest. How far will the car skid (on the same surface) if it is traveling at 80 km/hr?
Upload Choose a File 10 pts Question 3 An 80-Mg railroad engine A coasting at 6.5 km/h strikes a 20-Mg flatcar C carrying a 30-Mg load B which can slide along the floor of the car( 0.25). The flatcar was at rest with its brakes released Instead of A and C coupling as expected, it is observed that A rebounds with a speed of 2 km/h after the impact. Draw impulse-momentum diagrams that could be used to determine (a) the...
A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and
couples with two coupled railroad cars, each of the same mass as
the single car and moving in the same direction at 1.24 m/s.
b)
How much kinetic energy is lost in the collision?
USE THIS DATA:
17400 kg; 3.27 m/s; (help me see how you get the correct answer
of 2.39e4 J.
16-4 A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and...
15-6. A train consists of a 50-Mg engine and three cars, each having a mass of 30 Mg. If it takes 80 s for the train to increase its speed uniformly to 40 km/h, starting from rest, determine the force T developed at the coupling between the engine E and the first car A. The wheels of the engine provide a resultant frictional tractive force F which gives the train forward motion, whereas the car wheels roll freely. Also, determine...
A train consists of a 50 Mg engine and three cars, each having a mass of 30 Mg. If it takes 80 s for the train to increase its speed uniformly to 43 km/h, starting from rest, determine the force T developed at the coupling between the engine E and the first car A. The wheels of the engine provide a resultant friction tractive force F which gives the train forward motion, whereas the car wheels roll freely. Also, determine...
4. A railroad car that weighs 20,000 lb is traveling eastward with a velocity whose magni- tude is 5 fps. A second car, on the same track, that weighs 40,000 lb is also traveling in an easterly direction with a velocity of 7.81 fps. When the cars collided, they became coupled together and then both cars moved with the same velocity. If friction between the cars and the rails is neglected, what were the magnitude and the direc- tion of...
35. A car moving at 20 km/hr skids 10 m with locked brakes before coming to rest. How far will the car skid (on the same surface) if it is traveling at 80 km/hr?
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