Question

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Answer 1

Explanation:

This is the answer

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Answer 2

Answer:

f1/f2 = 3:2

Explanation:

let the mass of car = m

the acceleration of car at first time , a1 = 1.8m/s²

the acceleration of car at second time , a2 = 1.2 m/s²

force exerted at the first time , f1 = m × a1

f1 = 1.8m N

force exerted at the second time , f2 = m × a2

f2 = 1.2m N

the ratio of the exerted two force

f1/f2 = 1.8m/1.2m = 3:2