Physics math help

Question

What is the acceleration of a car, that starts from 5m/s and reaches 12m/s in 9 sec?

Answer 1

What is the acceleration of a car, that starts from 5m/s and reaches 12m/s in 9 sec?

Hello Maya,

Let's start with an equation for acceleration (a) whose variables include v₀ (for initial velocity) and v_f (for final velocity) and "t" for time:

a = (v_f - v₀) / t

Plugging in gets:

a = (12 - 5) / 9 = 7/9 m/s² = 0.778 m/s² (your instructor will tell you how many decimals he/she wants)