- #1
sylenteck0
- 13
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Homework Statement
Two highways intersect. A police car P is 800 m west from the intersection and moving at 80km/h west. Motorist M is 600m north of the intersection and moving at 60 km/h south.
a) in the unit-vector notation, what is the velocity of the motorist with respect to the police car?
b) How does the direction of the velocity found in a) compare to the line of sight between the two cars
c) If the cars maintain their velocities, do the answers to A and B change as the cars move nearer to the intersection?
Homework Equations
The Attempt at a Solution
Well, I'm assuming that we're going to use i and j, so I got this:
m= 0i+600mj p=800mi+0 j
Now, I'm unsure where I'm supposed to put the velocity of each car in. Or for that matter, how am I supposed to present the velocity of the motorist in respect to the police car? Am I just supposed to subtract the two vectors?
Thanks :)