Use the picture for1&2
1.
Find the following for path A. (a) The distance traveled. (b) The magnitude of the
displacement from start to finish. (c) The displacement from start to finish.
2.
Find the following for path B in Figure 2.59: (a) The distance traveled. (b) The magnitude of the
displacement from start to finish. (c) The displacement from start to finish.
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3.
The North American and European continents are moving apart at a rate of about 3 cm/y. At this
rate how long will it take them to drift 500 km farther apart than they are at present?
4.
Tidal friction is slowing the rotation of the Earth. As a result, the orbit of the Moon is
increasing in radius at a rate of approximately 4 cm/year. Assuming this to be a constant
rate, how many years will pass before the radius of the Moon’s orbit increases 3.84 x 10
6
m (1%)?
5.
A student drove to the university from her home and noted that the odometer reading of
her car increased by 12.0 km. The trip took 18.0 min. (a) What was her average speed?
(b) If the straight-line distance from her home to the university is 10.3 km in a direction
25.0
o
south of east, what was her average velocity?
A
B
C
D
0 2 4 6 8 10 12
displacement x (m)
X
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