Question

A man stands still on a moving walkway that is going at a speed of 0.3 m/s to the south. What is the velocity of the man according to a stationary observer?

Answer 1

The velocity is 0.3 m/s South.

Answer 2

With respect to stationary observer the velocity of man is 0.3 m/s towards South

Step-by-step explanation:

As we know that here man is standing still on the moving walkway

so here we can say that velocity of man with respect to walkway is zero

`\vec v_(mw) = 0`

now as per relative velocity concept we know

`\vec v_(mw) = \vec v_m - \vec v_w`

here we know

`\vec v_m` = velocity of man with respect to stationary observer

`\vec v_w` = velocity of walkway

now from above equation we have

`\vec v_m = \vec v_(mw) + \vec v_w`

now plug in all values in it

`\vec v_m = 0 + 0.3 m/s = 0.3 m/s` towards South