Calculations Involving Constant Acceleration
Example:
A roller coaster car speeds up as it rolls down a hill. Near the top of the hill, the car has a velocity of 3 m/s downward, and at the bottom of the hill, the car has a velocity of 21 m/s downward. It takes the roller coaster car a total of 3 seconds to roll from the top of the hill to the bottom. What is the average acceleration of the roller coaster car as it rolls down the hill?
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A roller coaster car speeds up as it rolls down a hill. Near the top of the hill, the car has a velocity of 3 m/s downward, and at the bottom of the hill, the car has a velocity of 21 m/s downward. It takes the roller coaster car a total of 3 seconds to roll from the top of the hill to the bottom. What is the average acceleration of the roller coaster car as it rolls down the hill?
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Average Acceleration Problems
- What is the average acceleration of a little girl who walks at 1 meter per second for 1 second? Express the answer using the proper SI unit(s).
- 0 m/s/s
- 1 m/s
- 1 m/s/s
- 2 m/s
- 2 m/s/s
- What is the average acceleration of a car with a velocity which changes from 10 kilometers/hour to 40 kilometers per hour in 6 seconds? Express the answer using the proper SI unit(s).
- 1.39 m/s^2
- 5 m/s/s
- 5 m/s
- 180 m/s/s
- 180 m/s
- What is the average acceleration of a car with a velocity which changes from 10 kilometers/hour to -40 kilometers per hour in 5 seconds? Express the answer using the proper SI unit(s).
- negative two point seven eight meters per second per second
- -6,000 m/s/s
- -6,000 m/s