A railroad car (car-A) of mass 3.5X105 kg is traveling at a speed of 0.46 m/s...
An empty railroad car traveling at a speed of 21 m/s strikes a second car at rest. The second car, being with passengers has twice the mass of the first car if the cars lock together as a result of the collision their common speed afterward is 11 m/s. 10 m/s. 9.0 m/s. 8.0 m/s. 7.0 m/s.
A railroad car with a mass of 1.95 ✕ 104 kg moving at 2.88 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.56 m/s. (a) What is the speed of the three joined cars after the collision? m/s (b) What is the decrease in kinetic energy during the collision? J
A 12,000 kg railroad car, initially traveling at 1.6 m/s, strikes three identical and connected railroad cars, initially at rest. The track is horizontal and frictionless. After the collision, all four cars move together at the same velocity. A.) Determine the final speed of the cars. (0.4 m/s). B.) Assuming the collision took 1.5 seconds, calculate the average force of collision. C.) How much non-conservative work was done during the collision? (-11500 J)
1. A 12,000 kg railroad car, intially traveling at 1.6 m/s, strikes three identical and connected railroad cars, initially at rest. The track is horizontal and frictionless. After the collision, all four cars move together at the same velocity. A. Determine the final speed of the cars. (0.4 m/s). B. Assuming the collision took 1.5 seconds, calculate the average force of collision. C. How much non-conservative work was done during the collision? (-11500 J)
A railroad car of mass 2.42 × 104 kg is moving with a speed of 3.84 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 of1.92 m/s.(a) What is the speed of the four cars after the collision?____ m/s(b) How much mechanical energy is lost in the collision?______J
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 3.25e4 kg is moving at 3.25 m/s collides and couples with two couples railroad cars, each of the same mass as the single car and moving in the same direction at 1.20m/s. A) what is the speed of the three coupled cars after the collision? B) how much kinetic energy is lost in the collision?
A railroad car of mass 3.10 ✕ 104 kg moving at 3.40 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 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? (b) How much kinetic energy is lost in the collision?
A railroad car of mass 3.15 ✕ 104 kg moving at 2.75 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 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? (b) How much kinetic energy is lost in the collision?
A railroad freight car weighing 28000 kg and traveling at 6.0 m/s overtakes one weighing 19000 kg and traveling at 4.0 m/s in the same direction. If the cars couple together, find (a) the speed of the cars after collision and (b) the loss of kinetic energy during collision. (c) Is this collision elastic or inelastic? Please explain the steps. Thank you!