# Automobile Deceleration Problem

by mr1214
Tags: deceleration
 P: 599 A deceleration of 6m/2^2 means that every second the velocity decreases by 6m/s. When something travels at 27m/2 I hope you can figure out after how many seconds the velocity is zero... For the amount of metres traveled you can use following formula for constant acceleration a for a time t $$s=\frac{1}{2}at^2$$