We can use the formula for deceleration:
\[ v_f = v_i + at \]
where \( v_f \) is the final velocity (0 ft/sec, since the car comes to a complete stop), \( v_i \) is the initial velocity (43 ft/sec), \( a \) is the acceleration (-6 ft/sec\(^2\)), and \( t \) is
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