Question

a car goes from 15 m/s to 95 m/s in 9 seconds. what is the acceleration? (write your answer in 3 significant figures)

Explanation:

Step1: Identify the formula for acceleration

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

Step2: Substitute the given values into the formula

Here, \(u = 15\space m/s\), \(v=95\space m/s\), and \(t = 9\space s\).

$$a=\frac{95 - 15}{9}=\frac{80}{9}$$

Step3: Calculate the value

\(\frac{80}{9}\approx8.89\space m/s^{2}\)

Answer:

\(8.89\space m/s^{2}\)