Question

1. what is the acceleration of a motorcycle that reaches 24 m/s in 8.5 seconds? 0.20 m/s² 2.8 m/s² 10 m/s² 208 m/s² clear all

Explanation:

Step1: Recall acceleration formula

$a=\frac{v - u}{t}$
Assume initial velocity $u = 0\ m/s$ (not given otherwise), final velocity $v=24\ m/s$ and time $t = 8.5\ s$.

Step2: Substitute values

$a=\frac{24 - 0}{8.5}=\frac{24}{8.5}\approx2.8\ m/s^{2}$

Answer:

B. $2.8\ m/s^{2}$