Solving Relative Velocity Problems: 346 vs 350

[ThomasMagnus]

Homework Statement

http://i179.photobucket.com/albums/w282/jasonselinger/1234.jpg

Homework Equations

The Attempt at a Solution

I got the answer 346, the real answer was 350. Did they just round up?

Thanks :)

 

[Quinzio]

Homework Statement

http://i179.photobucket.com/albums/w282/jasonselinger/1234.jpg

Homework Equations

The Attempt at a Solution

I got the answer 346, the real answer was 350. Did they just round up?

Thanks :)

They rounded up a little, but your answer's not really correct.

$$|v| = \sqrt((300+60cos40)^2+(60 sin40)^2)$$

 

[ThomasMagnus]

This is the way I did it this time. I got 348. Does that seem correct?