Question

acceleration practice problems

1. a car speeds up from 0 m/s to 20 m/s in 5 seconds.

find its acceleration.

Explanation:

Step1: Identify variables

\( v_i = 0 \, \text{m/s}, v_f = 20 \, \text{m/s}, t = 5 \, \text{s} \)

Step2: Use acceleration formula

\( a = \frac{v_f - v_i}{t} \)

Step3: Substitute and calculate

\( a = \frac{20 - 0}{5} = 4 \, \text{m/s}^2 \)

Answer:

4 m/s²