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A train, starting from rest from station A, travels along a straight horizontal track...
A train, starting from rest from station A, travels along a straight horizontal track until it stops at station B, which is 2400 m from A. Initially, the train accelerates at a uniform rate of 0.4 ms–2 until it reaches a speed of 16 ms–1. It then maintains this speed of 16 ms–1 for T s, before decelerating uniformly to rest in 20 s.
- Calculate the time taken for accelerating.
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We can use the equation of motion here
`V = 16m/s`
`U = 0` since the train start from rest
`a = 0.4m/(s^2)`
`t = ???`
So the time taken for acceleration is 40s.
Posted by jeew-m on August 1, 2013 at 10:36 PM (Answer #1)
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