Freight car A with a gross weight of 152000 lb is moving along the horizontal track in a switching yard at 2.0 mi/hr. Freight car B with a gross weight of 162000 lb and moving at 2.6 mi/hr overtakes car A and is coupled to it. Determine (a) the common velocity V of the two cars as they move together after being coupled and (b) the loss of energy |AE] due to the impact. 2.6 mi/hr 2.0 mi/hr B Answers:

Freight car A with a gross weight of 152000 lb is moving along the horizontal track in a switching yard at 2.0 mi/hr. Freight car B with a gross weight of 162000 lb and moving at 2.6 mi/hr overtakes car A and is coupled to it. Determine (a) the common velocity V of the two cars as they move together after being coupled and (b) the loss of energy |AE] due to the impact. 2.6 mi/hr 2.0 mi/hr B Answers:

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 42P: A 2000-kg railway freight car coasts at 4.4 m/s underneath a grain terminal, which dumps grain...

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