A chauffeur heads south with a steady speed of
v1 = 20.0 m/s
for
t1 = 3.00 min,
then makes a right turn and travels at
v2 = 25.0 m/s
for
t2 = 2.60 min,
and then drives northwest at
v3 = 30.0 m/s
for
t3 = 1.00 min.
For this 6.60-min trip, calculate the following. Assume +x is in the eastward direction.
(a)
total vector displacement (Enter the magnitude in m and the direction in degrees south of west.)
For each straight-line movement, model the car as a particle under
constant velocity, and draw a diagram of the displacements,
labeling the distances and angles. Let the starting point be the
origin of your coordinate system. Use the relationship speed =
distance/time to find the distances traveled during each segment.
Write the displacement vector, and calculate its magnitude and
direction. Don't forget to convert min to s! mdirection ° south of
west
(b)
average speed (in m/s)
m/s
(c)
average velocity (Enter the magnitude in m/s and the direction in degrees south of west.)
magnitude m/sdirection ° south of west
A chauffeur heads south with a steady speed ofv1 = 20.0 m/sfort1 =...
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