Question

a cars velocity changes from 0 m/s to 40 m/s in 5 seconds. what is the average acceleration of the car?
5 m/s/s
8 m/s/s
35 m/s/s
200 m/s/s

Explanation:

Step1: Recall the formula for acceleration

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

Step2: Identify the values

Given \(u = 0\space m/s\), \(v=40\space m/s\), \(t = 5\space s\).

Step3: Substitute values into the formula

\(a=\frac{40 - 0}{5}=\frac{40}{5}\)

Step4: Calculate the result

\(\frac{40}{5}=8\space m/s/s\)

Answer:

8 m/s/s