posted by Stacy on .
In a 100 m race, Maggie and Judy cross the finish line in a dead heat, both taking 10.6 s. Accelerating uniformly, Maggie took 2.20 s and Judy 2.90 s to attain maximum speed, which they maintained for the rest of the race. What was Maggie's acceleration?
1/2 a*2.2^2 + 2.2a*8.4 = 100
a = 4.78
1/2 a*2.9^2 + 2.9a*7.7 = 100
a = 3.77
Thanks so much!!! If you have time can you help me figure out their max speeds?
Fot max speed, multiply the acceleration rate by the length of time that person accelerated