Answer:
The Machine exerts a force of 9N.
Explanation:
Inital velocity (u) = 0 m/s
Final velocity (v) = 30 m/s
Time (t) = 0.5 s
Acceleration (a) = (v-u)/t
= (30-0)/0.5 m/s2
= 60 m/s2
Mass = 0.15 kg
Force = Mass*Acceleration
= 0.15*60 N
= 9 N
I think that there should be an options to choose. Anyway I think that the right answer sounds like this: The legalization of slavery led to a population that was almost fifty percent enslaved people.
Northwest Ordinance of 1787
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