Question

На протяжении 10 секунд авто двигалось​ прямолинейно с ускорением 0.5 м/с ² и достиг скорости 20 м/с. Узнать начальную скорость движения автомобиля

Answer 1

A=(v-v0)/t
v0=v-at
v0=20-0,5*10=15 м/с

Answer 2

Calculation of Initial Velocity

To find the initial velocity of the car, we can use the formula for uniformly accelerated motion:

v = u + at

where: - v is the final velocity (20 m/s), - u is the initial velocity (which we need to find), - a is the acceleration (0.5 m/s²), and - t is the time (10 seconds).

Substituting the given values into the formula, we have:

20 = u + (0.5)(10)

Simplifying the equation, we get:

20 = u + 5

Now, we can solve for u:

u = 20 - 5 = 15 m/s

Therefore, the initial velocity of the car was 15 m/s.