When Do Two Toy Cars on Parallel Tracks Match Speeds and Positions?

[BeckyStar678]

Homework Statement

at t=0, one toy car is set rolling on a straight track with initial position 15 cm, initial velocity -3.50 cm/s, and constant acceleration 2.40 cm/s2. at the same moment, another car is set rolling n an adjacent track with inital position 10 cm, an initial velocity of +5.50 cm/s, and constant acceleration zero. a.) at what time,if anydo the two cars have equal speeds b.) what are their speeds at that time? c.) at what time(s) if any do the cars pass each other? d.) what are their locations at that time? e.) explain the difference bt question a and c as clearly as possible

Homework Equations

x_f=x_i+ v_xit+1/2a_xt²

The Attempt at a Solution

is the above equation the right one to use?

 

[Doc Al]

That equation describes distance as a function of time. You'll need it, but you'll need others also. Review the https://www.physicsforums.com/showpost.php?p=905663&postcount=2".