What path will the car cover in 4 seconds if it starts moving from rest with an acceleration

What path will the car cover in 4 seconds if it starts moving from rest with an acceleration of 5 m / s2? What speed will he develop during this time?

Initial data: t (movement time) = 4 s; V0 (initial speed, movement from rest) = 0 m / s; a (acceleration with which the car was moving) = 5 m / s ^ 2.

1) The speed that the car will develop in 4 s: V = V0 + a * t = a * t = 5 * 4 = 20 m / s.

2) The path that the car will pass: S = (V ^ 2 – V0 ^ 2) / 2a = V ^ 2 / 2a = 20 ^ 2 / (2 * 5) = 400/10 = 40 m.

Answer: The car will cover a distance of 40 m, while developing a speed of 20 m / s.