1. meters per second 2. meters per second 3. meters per second 4.
meters per second 5. Take the average of #3 and #4 6. Another method 7. There isn’t enough information provided to approximate the speed
Before watching the videos, think about and answer these questions to the best of your ability.
A car speeds up as it drives away from a traffic light. The car’s GPS unit records its distance from the light in the table below:
What method could you use to approximate the car’s speed at the 5-second
mark?
Is the value you computed:
Equal to the car’s speed at the 5-second mark An
underestimate of the car’s speed at the 5-second mark An overestimate of the car’s
speed at the 5-second mark Neither an underestimate nor an overestimate You
can’t tell without having more information
If possible, how could you improve your approximation of the car’s speed at
the 5-second mark?
You don’t need to make an improvement because
the speed you calculated is the car’s speed at the 5-second mark Use a
different pair of points from the table to compute the speed Use two pairs of
points from the table to compute two speeds, and then average these speeds Use a larger interval of time (e.g., if you originally used a 1-second time
interval, a 2-second time interval would improve your approximation) Use
a smaller interval of time (which would require additional information)