Question

fill in the blank question a car traveling at 20 m/s reaches 60 m/s in 4 seconds traveling in a straight line. the car has an average acceleration of m/s².

Explanation:

Step1: Recall acceleration formula

Average acceleration $a = \frac{v_f - v_i}{t}$

Step2: Substitute given values

$v_f=60\ \text{m/s}$, $v_i=20\ \text{m/s}$, $t=4\ \text{s}$
$a = \frac{60 - 20}{4}$

Step3: Calculate the result

$a = \frac{40}{4} = 10$

Answer:

10