Question

What is the velocity in meters per second of a runner who runs exactly 110 m toward the beach in 72 seconds.

Answer 1

1.53 m/s towards the beach

Answer 2

1.53 m/s toward the beach

Explanation:

The magnitude of the velocity of the runner is given by:

$v=\frac{d}{t}$

where

d is the displacement of the runner

t is the time taken

In this case, d=110 m and t=72 s, so the velocity of the runner is

$v=\frac{110 m}{72 s}=1.53 m/s$

Velocity is a vector, so it consists of both magnitude and direction: we already calculate the magnitude, while the direction is given by the problem, toward the beach.