b. For how much time should the force of 400 N be exerted on
an object of mass 8 kg to increase its velocity from 150 m/s
300 m/s?
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Answer:
300 - 150 ÷ t × 8 = 400
f=ma , 3
a = v - u \t
m= 8
400 ÷ 8 = 50
300 - 150 ÷ 50 = 3
3s = t
Step-by-step explanation:
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