The train moves with an initial speed of 36 km / h and an acceleration of 0.5 m / s2. What is the movement of the train in 20 s

The train moves with an initial speed of 36 km / h and an acceleration of 0.5 m / s2. What is the movement of the train in 20 s and its coordinate at time t = 20 s, if the initial coordinate of the train is 20 m?

Task data: V0 (initial speed) = 36 km / h (in SI V0 = 10 m / s); a (acceleration) = 0.5 m / s2; t (elapsed time) = 20 s; x0 (initial coordinate) = 20 m.

1) Moving a given train in 20 s: S = V0 * t + 0.5 * a * t ^ 2 = 10 * 20 + 0.5 * 0.5 * 20 ^ 2 = 300 m.

2) Coordinate after 20 s: x = x0 + V0 * t + 0.5 * a * t ^ 2 = 20 + 300 = 320 m.

Answer: The train will move 300 m; the coordinate will be equal to 320 m.



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