- #1
Troubadour
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Homework Statement
The speed of a train increases at a constant rate α from zero to v, and remains constant for an interval, and finally decreases to zero at a constant rate β. If L be the total distance traveled, then the total time taken is-
(a) (L/v) + (v/2) [(1/α) + (1/β)
(b) (L/v) + (2/v) [(1/α) + (1/β)
(c) (L/v) + (2v) [(1/α) + (1/β)
(d) (L/v) + (1/v) [(1/α) + (1/β)
Homework Equations
v = u + at
s = ut + (1/2)at2
2as= v2 - u2
The Attempt at a Solution
I don't really know how to type in LaTEX so I can't show you the exact working. In short, I found the time during acceleration, time during constant speed and time during retardation. But I don't know how to write them in terms of one variable so that I can add them together.
Thanks :)