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Name: pete
Status: student
Age: 15
Location: N/A
Country: N/A
Date: 1999 

If a car accelerates because there is an balanced force acting on it how can it move if for every action there is an equal and opposite reaction?

You are assuming that the action and the opposite reaction will act on the same object. Not so. Think of the quintessential example of the gun firing a bullet. The action force acts on the bullet while the reaction force acts on the gun.

So why does the bullet move so much faster than the gun? Can you figure it out? Check out the law of the conservation fo momentum.

Larry Krengel

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