Question

Problem 6 A railroad car which has a mass of 10000 kg and speed of 4 m/sec collides with a stationary car of equal mass. The cars then lock and start move together. a. What is the momentum of the locked cars before the collision? b. What is the velocity of the locked cars after the collision? c. Compute the total kinetic energy of the car before the collision. d. Compute the total kinetic energy of the car the collision.

          Problem 6

A railroad car which has a mass of 10000 kg and speed of 4 m/sec collides with a stationary car of equal mass. The cars then lock and start move together.
a. What is the momentum of the locked cars before the collision?
b. What is the velocity of the locked cars after the collision?
c. Compute the total kinetic energy of the car before the collision.
d. Compute the total kinetic energy of the car the collision.

Problem 6

A railroad car which has a mass of 10000 kg and speed of 4 m/sec collides with a stationary car of equal mass. The cars then lock and start move together.
a. What is the momentum of the locked cars before the collision?
b. What is the velocity of the locked cars after the collision?
c. Compute the total kinetic energy of the car before the collision.
d. Compute the total kinetic energy of the car the collision.

Added by Timothy O.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Timothy James

07/29/2023

Step 1

Momentum before the collision: The momentum of the first car before the collision can be calculated using the formula p = mv, where p is momentum, m is mass, and v is velocity. p1 = (m1)(v1) = (m1)(u) = (m1)(10) = 1000 kg m/s (since u = 10 m/s) The momentum of Show more…

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A railroad car which has a mass of 10000 kg and speed of 4 m/sec collides with a stationary car of equal mass. The cars then lock and start move together. a. What is the momentum of the locked cars before the collision? b. What is the velocity of the locked cars after the collision? c. Compute the total kinetic energy of the car before the collision. d. Compute the total kinetic energy of the car the collision.