Question

Скорость тела 5 м/с ускорение 3 м/с^2. Какой станет скорость тела через 1 с?

Answer 1

V=v0+at
в= 5+3*1=8 м/с

Answer 2

I can answer your question in Russian. The final speed of the body after 1 second is given by the formula:

$$v_f = v_i + at$$

where $v_f$ is the final speed, $v_i$ is the initial speed, $a$ is the acceleration, and $t$ is the time. Plugging in the given values, we get:

$$v_f = 5 \text{ m/s} + 3 \text{ m/s}^2 \times 1 \text{ s}$$

$$v_f = 8 \text{ m/s}$$

So the final speed of the body after 1 second is 8 m/s. This is a basic kinematics problem that you can learn more about from [this video](https://ru.khanacademy.org/science/physics/one-dimensional-motion/kinematic-formulas/v/plotting-projectile-displacement-acceleration-and-velocity) or [this article](https://scienceland.info/physics7/acceleration-direction).