1. A displacement vector R in an xy plane is 20 m long @
an angle of 25 degrees. What are the x and y
components?
2. The Steamboat Gesyer in Yellowstone National Park,
capabale of shooting hot water from the ground at a
speed of 48 m/s. How high does the water reach
before falling back earthward?
3. Sara starts from rest and accelerates at 3 m/s^2 for
4 s. She then slows down to 8 m/s for the next 5 s.
She drives at that speed for 3 s. At the end of her
trip, How far has she traveled? What is her average
speed? What was her average acceleration for the
trip?
4. A motorcycle is moving at 30 m/s when the rider
applies the brakes to decelerate at a constant rate.
During the first 3 s after braking the speed of the
cycle is 15 m/s. What distance was traveled during
the deceleration before coming to rest?
5. A curious kitten taps a ball of yarn with its paw,
displacing the yarn 17.5 m in 2.0 s. What was the
yarns acceleration? What is the average speed of the
ball after 17.5 m ?
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 Spring '09
 JSchesinger
 Physics, Acceleration, Yellowstone National Park, m/s, Steamboat Gesyer

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