(Answered) A car is going at a speed of 216 kmhr when it encounters a

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A car is going at a speed of 21.6 km/hr when it encounters a 12.8m long slope of angle 30 degree. The friction coefficient between the road and the tyre is 1/2*0.732. Show that no matter how hard the driver applies the brakes,the car will reach the bottom with a speed of greater than 36km/hr.

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