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17 March, 14:17

A small car and a large SUV are at a stoplight. The car has a mass equal to half that of the SUV, and the SUV can produce a maximum accelerating force equal to twice that of the car. When the light turns green, both drivers push their accelerators to the floor at the same time. Which vehicle pulls ahead of the other vehicle after a few seconds?

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  1. 17 March, 14:20
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    Small car has mass m

    SUV has mass 2m

    Force applied by small car F

    Force applied by SUV 2F

    Acceleration of small car = F / m

    Acceleration of SUV = 2F / 2m = F / m

    both will have same acceleration. So no one will pull ahead as they start with zero velocity
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