a car moving at 35.2 m/s accelerates uniformly to 45.0 m/s over 2.25 s. what is the acceleration of the car…
a car moving at 35.2 m/s accelerates uniformly to 45.0 m/s over 2.25 s. what is the acceleration of the car? a = ? m/s²
Answer
Explanation:
Step1: Identify the 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: Substitute the values
Given $u = 35.2\ m/s$, $v = 45.0\ m/s$ and $t = 2.25\ s$. Substitute into the formula: $a=\frac{45.0 - 35.2}{2.25}$.
Step3: Calculate the numerator
$45.0−35.2 = 9.8$. So, $a=\frac{9.8}{2.25}$.
Step4: Calculate the acceleration
$a=\frac{9.8}{2.25}\approx4.36\ m/s^{2}$.
Answer:
$4.36$