A particle moves along a line so that its position

MATHEMATICS · Subjective · A Level · Mathematics · Kinematics · Kinematics

Problem

A particle moves along a line so that its position, in meters, is given by

s(t)=2t^{3}-9t^{2}+12t

, where

t

is measured in seconds. Calculate the particle’s velocity at

t=3\text{ s}