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Answer:
1. 0.6 kg.m/s
2. 72 kg
3. Vf = 5.25 m/s
4. The car
Explanation:
1. p = mv
p = (1.2 kg)(0.5 m/s)
p = 0.6 kg.m/s
2. m = p/v
m = 360/5
m = 72 kg
3. pi = pf
30(7) + u = (30+10)Vf
Vf = 5.25 m/s
4. p = mv
p = (1000 kg)(1 m/s)
p = 1000 kg.m/s
p = mv
p = (70 kg)(8 m/s)
p = 560 kg.m/s
Hope It Helps :)
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