# [SOLVED]vector (1,0) km is displacement due east, and the vector (0,1) km is displacement due north.

#### karush

##### Well-known member
View attachment 1222

there are 5 more questions on this which are more complicated but want to get this (a) first. assume by speed they mean magnitude of the vector.

Toyundai speed is $$\displaystyle 30 \frac{km}{h}$$

Chryssalt speed is $$\displaystyle \approx 39 \frac{km}{h}$$

#### tkhunny

##### Well-known member
MHB Math Helper
The arithmetic looks fine, but the question doesn't. Why do vehicles working north-south have east-west velocity components?