A dog walks 12 meters to the east and then 16 meters back to the west.
For this motion, what is the distance moved?
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Distance =
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55
What is the magn 28
of the displacement?
Magnitude = -4
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Dir'n =
West
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Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.