Answer:
d = 720 s
Explanation:
The question says, "A train initially traveling at 16m / s accelerates constantly at a rate of 2m / s2 in the same direction. How far will it travel in 20s?"
Initial speed, u = 16 m/s
Acceleration, a = 2m/s²
We need to find the distance covered by it in 20 seconds. Let the distance is d. Using the second equation of motion,
[tex]d=ut+\dfrac{1}{2}at^2\\\\d=16\times 20+\dfrac{1}{2}\times 2\times 20^2\\\\d=720\ m[/tex]
So, it will cover 720 m in 20 seconds.
