Wednesday
March 4, 2015

Homework Help: Physics

Posted by Johana on Monday, October 3, 2011 at 12:21pm.

The location of a car at times t1 and t2 is given by the position vectors

r1= 15km due east + 20km due north (time t1) and
r2= 13km due west + 25km due north (time t2)

The units of distance are kilometers

a. What is the magnitude l^rl of the displacement?
b. What angle does the displacement ^r vector make with respect to the x-axis?
c. Draw a graph of the given situation.

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