1. A car starts to travel in uniform circular motion. At one instant, it moves through the coordinates (x0,y0)=(30.0[m],30.0[m]) with velocity 20.0[m/s]i^ and acceleration of 3.00[m/s2]j^. What are the coordinates of the center of the circular path?

2. Shanes's mini vehicle can only have a maximum speed of 500[km/s]. She starts from rest and has to travel a straight distance of 3600[km] to reach a portal closing in 60.0[s]. She accelerates until he reaches her top speed and maintains this speed until she reaches the portal. Give her minimum (constant) acceleration to reach the portal before it closes?

3. Two balls are setup so that they throw at identical speeds and at an identical angle. The first thrown a a projectile A from the ground, while the second ball thrown a projectile B from a platform directly above the first ball. If the ball B reaches a maximum height from the ground seventeen ninths that ball A, what is the time of flight of B in terms of the time of flight of A?