Question

V=36км/ч t=2сек a=?​

Answer 1

Ответ:

36км/ч : 2сек =18м/с

....

Answer 2

To calculate the acceleration, you can use the following kinematic equation:

$v = u + at$

Where:

• $v$ is the final velocity (in this case, 36 km/h converted to m/s),
• $u$ is the initial velocity,
• $a$ is the acceleration,
• $t$ is the time.

Given that $v = 36 \, \text{km/h}$, you'll need to convert this velocity to meters per second (m/s) by dividing by 3.6 (since 1 km/h = 1000 m/3600 s = 5/18 m/s).

So, $v = \frac{36 \, \text{km/h}}{3.6} = 10 \, \text{m/s}$.

Given $t = 2 \, \text{sec}$, and since the initial velocity ($u$) is not provided, we'll assume it's 0 m/s (starting from rest).

Now you can rearrange the equation to solve for acceleration ($a$):

$a = \frac{v - u}{t}$

Substitute the values:

$a = \frac{10 \, \text{m/s} - 0 \, \text{m/s}}{2 \, \text{sec}} = \frac{10 \, \text{m/s}}{2 \, \text{sec}} = 5 \, \text{m/s}^2$

So, the acceleration ($a$) is $5 \, \text{m/s}^2$.