What is their final speed? What is their final speed? A railroad car of mass 2.50 x10^4 kg moving at 4.00 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. (b) If, Use g=9.8 m/s2 a 980,000 J b 420,500 J c 98,000 Nm d 14,500 J, is 1000 000 less than 2 183 486 is 1 000 000 more than 746 000 is 1 000 000 less than 624 327 207, 2. What fraction of the initial kinetic energy still retained by the cars after the collision? You can ask a new question or browse more Physics questions. If external fo, A train car with mass m1 = 566 kg is moving to the right with a speed of v1 = 8.8 m/s and collides with a second train car. 6. \left( 12000\ \text{kg} \right)\left( 2\ \text{m/s} \right)+\left( 10000\ \text{kg} \right)\left( 0\ \text{m/s} \right) &=\left( \left( 12000\ \text{kg} \right)+\left( 10000\ \text{kg} \right) \right){{v}_{f}} \\ A 40,000-kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000-kg railroad car initially at rest, and the cars stick together. What restaurants are near Stargarder Tor? Stargard Gate, located to the south of Neubrandenburg's Marienkirche , was first of the four medieval city gates that we have seen during our short stay within the old, medieval city walls. If the cars lock together, what is the final speed of the two railroad. place. After the collision, Car A is . A railroad car moving at a speed of 3.16 m/s overtakes, collides and couples with two coupled railroad cars moving in the same direction at 1.40 m/s. A bowling ball of 35.2kg, generates 218 kg.m/s units of momentum. A 12,000kg. It collides with a stationary car of mass 1500 kg, and the two vehicles lock together. A 20,000 kg railroad car is traveling at 5 m/s when it collides and couples with a second, identical car at rest. other forms of energy? A 20 gram bullet traveling at 250m/s strikes a block of wood that weighs 2kg. (a) Sketch the problem with before-and-after diagrams, representing the skaters as blocks. 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 100 m/s. All cars have a mass of mass 2.5 x 10^4 kg. a. Wha, A railroad car with a mass of 12,400 kg collides and couples with a second car of mass 18,700 kg that is initially at rest. (a) What is the speed of the three coupled cars after the c, A railroad car of mass 3.00 x 10^4 kg moving at 3.50 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 t, A railroad car of mass 2.00 times 10^4 kg moving at 3.00 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 a, A railroad car of mass 2.1 \times 10^4kg moving at 4.00 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 1.20m/s. (b) What is the impuls, A railroad car of mass 2.90 multiplied by 104 kg moving at 3.50 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. What is the momentum of the 9,000 kg railroad car before the collision? The momentum of a system does not change (is conserved) when no external forces act upon the system. (b) What is the average force applied to the driver by the seatbelt? (a), A railroad car of mass 2.7\times 10^4 kg moving at 3.50 m per 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. A railroad car of mass 2.50 x10^4 kg moving at 4.00 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. The conveyor belt is supported by frictionless rollers and moves at a constant speed of v = 0.750 m/s under the action of a constant horizontal external force Fext supplied by the motor that drives the belt. All cars have a mass of mass 2.5 x 10^4 kg. If the cars lock together as a result of the collision, what is their common speed afterward? The cars lock bumpers and skid off together with the wheels locked. Find the speed of the coupled cars after the collision. Find (a) the sands rate of change of momentum in the horizontal direction, (b) the force of friction exerted by the belt on the sand, (c) the external force Fext, (d) the work done by Fext in 1 s, and (c) the kinetic energy acquired by the falling sand each second due to the change in its horizontal motion. They collide, the lighter car rebounding opposite its original direction at 0.300 m/s. (a) What is the initial momentum of the first car? Experts are tested by Chegg as specialists in their subject area.
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