Freight car A with a gross weight of 154000 lb is moving along the horizontal track in a switching yard at 2.3 mi/hr. Freight car B with a gross weight of 159000 Ib and moving at 3.3 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. 3.3 mi/hr 2.3 mi/hr B Answers: (a) V = mi/hr (b) ΔΕ- i ft-lb

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Freight car A with a gross weight of 154000 Ib is moving along the horizontal track in a switching yard at 2.3 mi/hr. Freight car B with a
gross weight of 159000 Ib and moving at 3.3 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.
3.3 mi/hr
2.3 mi/hr
Answers:
(a) V =
i
mi/hr
( b) ΙΔΕΙ -
ft-lb
=
Transcribed Image Text:Freight car A with a gross weight of 154000 Ib is moving along the horizontal track in a switching yard at 2.3 mi/hr. Freight car B with a gross weight of 159000 Ib and moving at 3.3 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. 3.3 mi/hr 2.3 mi/hr Answers: (a) V = i mi/hr ( b) ΙΔΕΙ - ft-lb =
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