a = ?
Δx = 30 m
vf = 20 m/s
v0 = 0 m/s
t = ?
Use the last equation:
a = (vf2 - v02)/2Δx = (202 - 0)/(2 × 30) = 6.67 m/s
In a typical greyhound race, a dog accelerates to a speed of 20m/s over a distance of 30m. It then maintains this speed. What would be a greyhound's time in the 100m dash? Assume constant acceleration for the first period.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Motion with Multiple Parts concept. You can view video lessons to learn Motion with Multiple Parts. Or if you need more Motion with Multiple Parts practice, you can also practice Motion with Multiple Parts practice problems.