A Car Is Going At $20.0 \mathrm{~m} / \mathrm{s}$ at the Same Time That It Reaches the Beginning

Short Answer

A car is going at $20.0 \mathrm{~m} / \mathrm{s}$ . At the same time that it reaches the beginning of a kilometre-long track, it starts accelerating at $5.00 \mathrm{~m} / \mathrm{s}^{2}$ . How long does it take the car to go around the track once?