Find the velocity of the rain drops with respect to the man?

[Indranil]

[Mentors' note: No template, as this post was moved from the technical forums]
Q. A man is walking on a level road at a speed of 3.0 km/h. Raindrops fall vertically at a speed of 4.0 km/h. Find the velocity of the raindrops with respect to the man,
A. The explanation is below:
Here I don't understand the diagram. Why the resultant vector left downward is between -v man.street and v rain.street? what does '-v man.street' denote on the diagram?

 

[phinds]

Q. A man is walking on a level road at a speed of 3.0 km/h. Raindrops fall vertically at a speed of 4.0 km/h. Find the velocity of the raindrops with respect to the man,
A. The explanation is below:
Here I don't understand the diagram. Why the resultant vector left downward is between -v man.street and v rain.street?

what do you think?

what does '-v man.street' denote on the diagram?

What does a minus sign mean on ANY vector diagram that is oriented with the +x direction as the positive vector direction?

 

[anorlunda]

what does '-v man.street' denote on the diagram?

The horizontal component of the rain relative to the man.

If +velocity is to the right (the direction of the man's walk), then the horizontal component of rain relative to the man is in the opposite direction; minus.

 

[phinds]

Whatever happened to the Socratic Method, as opposed to just spoon-feeding the answer?

 

[anorlunda]

Whatever happened to the Socratic Method, as opposed to just spoon-feeding the answer?

Whoops. You're right.