Physics

Problem

A student walks

30\,\text{m}

due east in

25\,\text{s}

, then

30\,\text{m}

due west in

35\,\text{s}

. Which statement correctly compares the student’s average velocity and average speed for the entire

60\,\text{s}

trip? a) The average velocity is

0.50\,\text{m/s}

east, and the average speed is

1.0\,\text{m/s}

. b) Both the average velocity and the average speed are

1.03\,\text{m/s}

. c) The average velocity is

0\,\text{m/s}

, and the average speed is

1.0\,\text{m/s}

. d) The average velocity is

0\,\text{m/s}

, and the average speed is

0.86\,\text{m/s}