The trolleybus moves with an acceleration of 1.5 m / s2. How long does it take for it to reach a speed of 54 km / h?
| April 16, 2021 | education
Initial data: a (acceleration with which the given trolleybus accelerates) = 1.5 m / s2; V (required trolleybus speed) = 54 km / h (in SI V = 15 m / s).
The duration of the acceleration of this trolleybus is calculated by the formula: t = V / a.
Let’s make a calculation: t = 15 / 1.5 = 10 s.
Answer: This trolleybus will acquire a speed of 54 km / h in 10 seconds.
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