Question

1. a car traveling at 7.0 m/s accelerates at the rate of 0.80 m/s² for an interval of 2.0 s. find the final velocity of the car.

Explanation:

Step1: Identify the formula

We use the kinematic - equation $v = v_0+at$, where $v$ is the final velocity, $v_0$ is the initial velocity, $a$ is the acceleration and $t$ is the time.

Step2: Substitute the given values

Given $v_0 = 7.0$ m/s, $a = 0.80$ m/s², and $t = 20$ s.
$v=7.0 + 0.80\times20$

Step3: Calculate the result

$v=7.0+16$
$v = 23$ m/s

Answer:

23 m/s