For a body moving along a straight line

MATHEMATICS · Single correct · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation

Problem

For a body moving along a straight line, the position at time

t

seconds is

s(t)=t^{3}-6t^{2}+9t+4

metres. Calculate its acceleration at

t=2

seconds. (a)

-12\text{ m/s}^{2}

(b)

12\text{ m/s}^{2}

(c)

0\text{ m/s}^{2}

(d)

6\text{ m/s}^{2}