With what acceleration should the locomotive move in order to increase the speed from 36 km / h to 54 km / h in 20 seconds?

univerkov | January 3, 2021 | education

Task data: t (duration of the accelerated movement of the locomotive) = 20 s; V0 (initial speed) = 36 km / h (in SI V0 = 10 m / s); V (required speed of the locomotive) = 54 km / h (in SI V = 15 m / s).
The required acceleration of the locomotive can be determined by the formula: a = (V – V0) / t.
Calculation: a = (15 – 10) / 20 = 0.25 m / s2.
Answer: The locomotive will need to move with an acceleration of 0.25 m / s2.

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