Question

On a day when the wind is blowing toward the south at 4 m/s, a runner jogs east at 5 m/s. What is the velocity (speed and direction) of the air relative to the runner

Answer 1

Answer:

$v=5m/s$

Direction:SW(south-west)

Explanation:

From the question we are told that

Velocity and direction of Runner $V_r= 5m/s ,East$

Velocity and direction of Air$V_a= 4m/s ,South$

Generally the the resultant velocity v is mathematically given as

$v=\sqrt{V_a^2+V_r^2}$

$v=\sqrt{4^2+5^2}$

$v=5m/s$

The resultant velocity is towards the south-west