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By what factor does the force required to stop a car increase if the initial speed is doubled and the stopping distance remains the same?
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By what factor does the force required to stop a car increase if the initial speed is doubled and the stopping distance remains the same?

User Anbarasu Chinna
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Since the equation is F = ma the acceleration would change by a factor of 2, since a = v/2. The force would double.
User Tfrascaroli
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