# Physics

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A race car has a mass of 715 kg. It starts from rest and travels 38.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?

• Physics -

force= mass*acceleration

average velocity= distance/time
final velocity= 2*distance/time

acceleration= (finalvelocity-0)/time
= 2*distance/time^2

Or you can do it this way:

Vf^2=Vi^2 + 2 a d where a is Force/mass

• Physics -

45

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