The displacement of a car moving on a straight road is given by (in SI units)

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

Problem

The displacement of a car moving on a straight road is given by

x = 4 + 2.5 t

(in SI units). (i) Calculate its instantaneous velocity at

t = 10\,\text{s}

. (ii) Find its average velocity between

t = 4\,\text{s}

and

t = 12\,\text{s}