1. A car accelerates from rest at a rate of 2.0 m/s^2 [N]. What is the displacement of the cart at t=15 s.

2. An astronaut is piloting her spacecraft toward the International Space Station. To stop the aircraft, she fires the retro-rockets, which causes the spacecraft to slow down from 20.0 m/s [E] to 0.0 m/s in 12 s.

a. What is the acceleration of the spacecraft?

b. What is the displacement of the spacecraft when it comes to rest?