(Solved): 9. (4 pts) Two cars are speeding up from rest to 27 m/s (about 60 mph). If car A, of mass 1000 kg, c ...

9. (4 pts) Two cars are speeding up from rest to 27 m/s (about 60 mph). If car A, of mass 1000 kg, can do it in 6 s and car B, of mass 1200 kg, can do it in 6.8 s, which car exerts more power during this process?

1. ????Car A.
2. ????Car B.
3. ????They have the same power.
4. ????More information is needed to decide.