Answers to Questions
1a -2.5m/s2 b -2500N
2a 5m/s2 b 450 N
3a 0.25m/s2 ` b 3N
4a - 1500 m/s2 b -30 N
5 500kg
6 10m/s2
7 a = -
3m/s
-2250 N
