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Freight car A with a gross weight of 190,000 lbs is moving along the horizontal track in a switching yard at 4 mi/hr. Freight car B with a gross weight of 90,000 lbs and moving at 7 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. 7 mi/hr 4 mi/hr B A (a) v=4.964 mi/hr (b) |E|= ft-lbs

Freight car A with a gross weight of 190,000 lbs is moving along the horizontal track in a switching yard at 4 mi/hr. Freight car B with a gross weight of 90,000 lbs and moving at 7 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. 7 mi/hr 4 mi/hr B A (a) v=4.964 mi/hr (b) |E|= ft-lbs

Solid Waste Engineering
Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter5: Separation Processes
Section: Chapter Questions
Problem 5.3P
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Freight car A with a gross weight of 190,000 lbs is moving along the horizontal track in a switching yard at 4 mi/hr. Freight car B with a gross weight of 90,000 lbs and moving at 7 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. 7 mi/hr 4 mi/hr B A (a) v=4.964 mi/hr (b) |E|= ft-lbs
Transcribed Image Text:Freight car A with a gross weight of 190,000 lbs is moving along the horizontal track in a switching yard at 4 mi/hr. Freight car B with a gross weight of 90,000 lbs and moving at 7 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. 7 mi/hr 4 mi/hr B A (a) v=4.964 mi/hr (b) |E|= ft-lbs
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