1. An Indy-500 race car's velocity increases from +4.4m/s to +37.2m/s over a 4-second period. What is its acceleration (in m/s2)?

2.A golf ball rolls up a hill on a Putt-Putt hole. If it starts with a velocity of +5.2 m/s and accelerates at a rate of -1.3 m/s2, what is its final velocity after 1.7 s?
3. A car slows from 28.7 m/s to 8.5 m/s with a constant acceleration of -3.8 m/s2. How long in seconds does it require?
4. A race car traveling at +41m/s is uniformly accelerated to a velocity of +23 m/s over an 2.6-s interval. What is its displacement during this time?

5. A snowboarder on a slope starts from rest and reaches a speed of 5.9 m/s after 5.4 s.
What is the magnitude of the snowboarder's average acceleration?
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6.A snowboarder on a slope starts from rest and reaches a speed of 8.8 m/s after 9.1 s.
How far does the snowboarder travel in this time?
7.A driver in a car, originally moving at 12.2 m/s, applies the brakes until the car comes to a stop. The car moves a distance of 2.5m while braking. How much time in seconds did it take for the car to stop? Assume constant acceleration during braking.
8. A driver in a moving car applies the brakes. The car slows to a final speed of 7.9 m/s over a distance of 36.5 m and a time interval of 7.7 s. The acceleration while braking is approximately constant.
What is the car's original speed before braking?