A particle, initially 15m from the origin and travelling at –2 ms^-1, accelerates at a constant rate and ends up –20 m from the origin and travelling at –5 ms^-1. What
is its acceleration?
Solve for a: a = (v² - v₀²)/(2x). You are given v₀ and v, and x is easy to calculate since you are given its initial and final values. The rest is just arithmetic.
