HELP...this is due in like 30 minutes!
 

HELP...this is due in like 30 minutes!

Setting a world record in a 100 m race, Maggie and Judy cross the finish line in a dead heat, both taking 11.0 s. Accelerating uniformly, Maggie took 2.00 s and Judy 5.50 s to attain maximum speed, which they maintained for the rest of the race.
(a) What was the accleration of each sprinter?
(b) What were their respective maximum speeds?

THANKZZZZZZZZ!!!!!!!!! IN ADVANCE

Re: HELP...this is due in like 30 minutes!
 

2 seperate problems. Just ignore everything about Judy at the moment.

First, you know how long judy took to get to her max speed. accel*time_spent_accel=speed. so there's one equation with two variables.

Second, you know how far she travelled in 11 s. That's in two parts. how far she travelled in the 2s she was accelerating + how far she travelled in the (11-2) s she was at max speed == 100m.

dist_accel + dist_at_speed = 100m

two equations, two unknowns, solve. Plug in the times for Judy to get the answers for her.

Note that I'm being specifically a little vague in my answer. If you don't know the equation for distance travelled in a period of time at constant acceleration.... well you should pay more attention in physics.