Locomotive A pulls the train B and C. Between locomotive A and train B, there is...
Locomotive A pulls the train B and C. Between locomotive A and train B, there is a coupler and the coupler’s tension is ?1, also between train B and train C there is a coupler and its tension is ?2. There are frictions between locomotive A and trains B and C and the rail beneath them, and the friction coefficient is ?. Meanwhile, locomotive A generates a traction ? on its wheel. Train B and train C has equal mass which is ?? = ?? = ?; while locomotive A has mass of ?? = 2?.
The locomotive A and trains B and C are moving together with equal velocity ?, and their acceleration is also equal which is ?. At this point, it is unknown whether the acceleration, ?, is nonzero or zero. Find:
a. Draw the free body diagram of locomotive A, train B, and train C.
b. Show that ?1 = 2?2.
c. Show that ? = 4?2.
d. If ? = 4???, what is the acceleration of the locomotive and the trains?
Homework Answers
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Which one of the following statements correctly descibes the
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A.
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Make sure to consider all parts of the
problem with detail and accuracy. Please show your work and
explain. Thank you!
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