The velocity of a particle is for

MATHEMATICS · Subjective · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation

Problem

The velocity of a particle is

\mathbf v(t)=\langle 6t-10,\;t^{2}-9\rangle

for

0\le t\le6

. Determine every time in this interval at which the particle changes horizontal direction.