Homework Answers
Use momentum conservation principle to find the required mass as
shown below
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A railroad freight car of mass 1.79 x 104 kg collides with a stationary caboose car....
A railroad freight car of mass 4.67 × 104 kg collides with a stationary caboose car....
A railroad freight car of mass 4.67 × 104 kg collides with a stationary caboose car. They couple together, and 27.0% of the initial kinetic energy is transferred to thermal energy, sound, vibrations, and so on. Find the mass of the caboose.
Please Write clearly and do not skip steps. (3p.) A m-ton railroad freight car collides with...
Please Write clearly and do not skip steps.
(3p.) A m-ton railroad freight car collides with a stationary caboose car. They couple together and 50% of the initial kinetic energy is dissipated as heat. Find the mass M of the caboose.
A railroad car of mass 3.10 ✕ 104 kg moving at 3.40 m/s collides and couples...
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...
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 car of mass 2.95 ✕ 104 kg moving at 3.10 m/s collides and couples...
A railroad car of mass 2.95 ✕ 104 kg moving at 3.10 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? m/s (b) How much kinetic energy is lost in the collision? J
A railroad car of mass 2.45 ✕ 104 kg moving at 3.05 m/s collides and couples...
A railroad car of mass 2.45 ✕ 104 kg moving at 3.05 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? m/s (b) How much kinetic energy is lost in the collision? J
Required information In the railroad freight yard, an empty freight car of mass m rolls along...
Required information In the railroad freight yard, an empty freight car of mass m rolls along a straight level track at 1.20 m/s and collides with an initially stationary, fully loaded boxcar of mass 5.70m. The two cars couple together on collision. What is the speed of the two cars after the collision? m/s
A railroad car with a mass of 13000 kg collides and couple with a second car...
A railroad car with a mass of 13000 kg collides and couple with a second car of mass 20,000kg that is initially at rest. the first car is moving with a speed of 3.5 m/s prior to the collision. a) what is the initial momentum of the first car ? b) if external forces can be ignored, what is the final velocity of the two railroad cars after they couple.
In the railroad freight yard, an empty freight car of mass m rolls along a straight...
In the railroad freight yard, an empty freight car of mass m rolls along a straight level track at 1.20 m/s and collides with an initially stationary, fully loaded boxcar of mass 5.20m. The two cars couple together on collision. A). What is the speed of the two cars after the collision? B). Suppose instead that the two cars are at rest after the collision. With what speed was the loaded boxcar moving before the collision if the empty one...
A railroad freight car, mass 15 000 kg, is allowed to coast along a level track...
A railroad freight car, mass 15 000 kg, is allowed to coast along a level track at a speed of 3.0 m/s. It collides and couples with a 54 000-kg loaded second car, initially at rest and with brakes released. What percentage of the initial kinetic energy of the 15 000-kg car is preserved in the two-coupled cars after collision? Answer options below. A. 14% B. 18% C. 78% D. 22% E. 38%
Please Write clearly and do not skip steps.
(3p.) A m-ton railroad freight car collides with a stationary caboose car. They couple together and 50% of the initial kinetic energy is dissipated as heat. Find the mass M of the caboose.
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