Question

select the correct answer
a motorcycle is moving at a constant velocity of 15 meters/second. then it starts to accelerate and reaches a velocity of 24 meters/second in 3 seconds. whats the acceleration of the motorcycle over this time? use a = \\(\frac{v - u}{t}\\)
a. 9 m/s²
b. 8 m/s²
c. 6 m/s²
d. 5 m/s²
e. 3 m/s²

Explanation:

Step1: Identify variables

$v_i=15\ \text{m/s}, v_f=24\ \text{m/s}, t=3\ \text{s}$

Step2: Calculate acceleration

$a=\frac{v_f - v_i}{t}=\frac{24 - 15}{3}=\frac{9}{3}=3\ \text{m/s}^2$

Answer:

E. 3 m/s²