The displacement of a cart moving along a straight line is at

PHYSICS · Single correct · CBSE · Physics · Motion · Motion

Problem

The displacement of a cart moving along a straight line is

0\,\text{m}

t = 0\,\text{s}

6\,\text{m}

t = 2\,\text{s}

, remains

6\,\text{m}

until

t = 5\,\text{s}

, and is

-3\,\text{m}

t = 8\,\text{s}

. In which time interval is the cart’s velocity negative? (a)

2

–

8\,\text{s}

(b) It is never negative. (c)

5

–

8\,\text{s}

(d)

2

–

5\,\text{s}