Physics

Problem

From a position–time record of a scooter, the points

(1\,\text{s},\,2\,\text{m})

and

(7\,\text{s},\,-4\,\text{m})

are noted. The scooter’s average velocity between

t=1\,\text{s}

and

t=7\,\text{s}

is a)

-0.86\,\text{m s}^{-1}

-1.0\,\text{m s}^{-1}

1.0\,\text{m s}^{-1}

-0.75\,\text{m s}^{-1}