The body moves along the OX coordinate axis. The directions of the initial velocity and acceleration coincide

The body moves along the OX coordinate axis. The directions of the initial velocity and acceleration coincide with the positive direction of the axis, and their modules are equal to V0 = 4m / s, a = 2m / s2. Find the speed in 4 s from the start of the countdown.

It is known that the body moves along the coordinate axis Ox, the directions of the initial velocity and acceleration coincide with the positive direction of the axis, and their moduli are equal to v 4 = 4 m / s, a = 2 m / s ^ 2. To find the speed in t = 4 s from the start of time, we use the formula:

v = v₀ + a ∙ t or v = 4 m / s + 2 m / s ^ 2 ∙ 4 s; v = 12 m / s.

Answer: body speed is 12 m / s.