What is the magnitude of the average force required to stop an 1500kig car in 8.0 s if the care is traveling at 95 km/h?

Formula: Sigma F= ma
*convert 95km/h to 26m/s

Which kinematic equation do I use and for which variable do I use within the equation?

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  1. a=v/t,
    v=95 km/hr=95000/3600 m/s

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