Problem

At time

t = 0

, a car moving along a straight line has a velocity of

16 \text{ ms}^{-1}

. It slows down with an acceleration of

-0.5t \text{ ms}^{-2}

, where

t

is in second. Mark the correct statement (s). a. The direction of velocity changes at

t = 8 \text{ s}

b. The distance travelled in

4 \text{ s}

is approximately

58.67 \text{ m}

c. The distance travelled by the particle in

10 \text{ s}

94 \text{ m}

d. The speed of particle at

t = 10 \text{ s}

9 \text{ ms}^{-1}