Question

3 what was the acceleration from 0 - 2 seconds?
a 25 m/s²
b 100 m/s²
c 0 m/s²
d 50 m/s²

Explanation:

Step1: Recall the formula for acceleration

Acceleration \(a=\frac{\Delta v}{\Delta t}\), where \(\Delta v = v_{final}-v_{initial}\) and \(\Delta t=t_{final}-t_{initial}\).

Step2: Determine \(v_{initial}\), \(v_{final}\), \(t_{initial}\) and \(t_{final}\)

From \(t = 0\) to \(t=2\) seconds: \(v_{initial}=0\ m/s\), \(v_{final} = 50\ m/s\), \(t_{initial}=0\ s\), \(t_{final}=2\ s\).

Step3: Calculate the acceleration

\(a=\frac{50 - 0}{2-0}=\frac{50}{2}=25\ m/s^{2}\)

Answer:

A. \(25\ m/s^{2}\)