Question

1. roller coaster stem a roller coaster accelerates from 0 m/s to 20 m/s in 5 seconds. what is its acceleration?

Explanation:

Step1: Recall acceleration formula

The formula for acceleration is $a=\frac{v - u}{t}$, where $v$ is final - velocity, $u$ is initial - velocity, and $t$ is time.

Step2: Identify values

Given $u = 0\ m/s$, $v = 20\ m/s$, and $t = 5\ s$.

Step3: Substitute values into formula

$a=\frac{20 - 0}{5}$

Step4: Calculate

$a=\frac{20}{5}=4\ m/s^{2}$

Answer:

$4\ m/s^{2}$