A car moves along a straight road with velocity (measured in m/s) described as…

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A car moves along a straight road with velocity

v(t)

(measured in m/s) described as follows: •

v(t)

increases linearly from

0

t=0\text{ s}

18

t=3\text{ s}

. •

v(t)

then decreases linearly to

-6

t=7\text{ s}

. •

v(t)

remains constant at

-6

for

7\le t\le9\text{ s}

. Compute the net displacement of the car for

0\le t\le9\text{ s}

. Include appropriate units.