Question

Mike walked 450 m west. He then turned and walked 150 m to the east in 300 seconds. what was his velocity?

Answer 1

Velocity = Displacement / time

Displacement = 450 - 150 = 300.

By the time he walked 150 East, he walked backwards. Hence displacement is 300 m West.

Velocity = 300m / 300 s
  
              = 1 m/s

Answer 2

Answer:

Velocity, v = 1 m/s

Explanation:

Given that,

Initially Mike walked 450 m due west and then he turned and walked 150 m to the east.

Time taken, t = 300 s

The displacement of Mike is equal to the difference in final position and the initial position.

d = 450 - 150

d = 300 m

Let v is his velocity. It is equal to the net displacement divided by total time taken.

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

$v=\dfrac{300\ m}{300\ s}$

v = 1 m/s

So, the velocity of Mike is 1 m/s. Hence, this is the required solution.