Let be the position function of a particle moving along a straight line
MATHEMATICS · Single correct · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation
Problem
Let f be the position function of a particle moving along a straight line, and let f′(t) denote its velocity at time t. Which of the following correctly identifies when the particle is moving to the left?
(a) when f′′(t)<0
(b) when f′(t)<0
(c) when f′(t)>0
(d) when f(t)<0