Question

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

A). 0.654 m/s toward the beach                         C). 15.3 m/s toward the beach
B). 1.53 m/s toward the beach                           D). 7920 m/s toward the beach

Answer 1

B) 15.3

Step-by-step explanation:

Answer 2

B). 1.53 m/s toward the beach

Step-by-step explanation:

Velocity consists of a) a magnitude (the speed) and b) a direction.

The speed is given by the ratio between the distance covered and the time taken:

`v=(110 m)/(72 s)=1.53 m/s`

while the direction is given in the problem, it is the same as the displacement (toward the beach).