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The force required to stop a car of mass 800 kg moving at a speed of 20 m/s over a distance of 25 m in 2.5 second is a. 1200 Nb. 6400 Nc. 1600 Nd. 1800 N​

Answer» 6400 NExplanation:To find the ANSWER we first need to find the deceleration, as Force = (mass * ACCELERATION)s = ut + 1/2at² 25 = (0*2.5) + a/2*2.5²a = 25 * 2/2.5² = 8m/s²F = maF = 800 * 8 = 6400 N


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