Physics
posted by Patricia .
You drive a car 1400 to the east, then 2400 to the north. The trip took 3.0 minutes.
What was the direction of your average velocity?
What was the magnitude of your average velocity?
For some reason I seem to be lacking ability to answer these questions. I tried displacement/time but I got it wrong what do you guys think?

Physics 
MathMate
Displacement take into account of the direction, and does not take into account of the intermediate steps. Distance is the linear measurement.
For example, if you go east 10 km, and then north 10 km, and then west 10 km. You finish at at point at 10 km north of the initial position.
The displacement is 10 km north.
The distance is 30 km.
The same applies to your problem.
The separate displacements are
1400 units east, 2400 units north.
If we take the cartesian plan with east=xaxis, and north=yaxis, the displacement is (1400,2400).
The magnitude of the displacement is
√(1400²2400²)
=2778.5 units
The direction is given by
tan^{1}(y/x)
=tan^{1}(2400/1400)
=59.74° 
Physics  erratum 
MathMate
The magnitude of the displacement is
√(1400²+2400²) 
Physics 
MathMate
The average velocity is the displacement divided by time, in this case, in units/min, or any other that you see fit.
Respond to this Question
Similar Questions

physics 111
A bicycle travels 3.2 km due east in 0.10 h, then 5.6 km at 15.0° east of north in 0.11 h, and finally another 3.2 km due east in 0.10 h to reach its destination. The time lost in turning is negligible. What is the average velocity … 
Physics
A car makes a trip due north for three fourths of the time and due south onefourth of the time. The average northward velocity has a magnitude of 27m/s, and the average southward velocity has a magnitude of 17m/s. What is the average … 
Physics
A car travels east at 82 km/h for 1.5 h. It then travels 30.0° east of north at 113 km/h for 1.6 h. What is the average velocity for the trip? 
physics
A car makes a 60km trip with an average velocity of 38.5km/h in a direction due north. The trip consists of three parts. The car moves with a constant velocity of 25 km/h due north for the first 15 km and 62 km/h due north for the … 
physics
a train moving at a constant speed of 100km/h travels east for 40 minutes..then 30 degree east of north for 20 minutes...and finally west for 30 minutes..what's the trains average velocity for the trip at which direction? 
Physics
Could someone please review my answers and tell me if I am on the right track? 
physics
A regional airline flight consists of two legs with an intermediate stop. The airplane flies 380 due north from airport A to airport B. From there, it flies 260 due east to its final destination at airport C. Part A What is the magnitude … 
Physics
A train at a constant 44.0 km/h moves east for 42 min, then in a direction 45.0° east of due north for 17.0 min, and then west for 51.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north … 
Physics
A train at a constant 41.0 km/h moves east for 28 min, then in a direction 53.0° east of due north for 15.0 min, and then west for 64.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north … 
Physics
A car makes a trip due north for threefourths of the time and due south onefourth of the time. The average northward velocity has a magnitude of 25 m/s, and the average southward velocity has a magnitude of 32 m/s. Taking northward …