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A car is going at a speed of 21.6 km/hr ...

A car is going at a speed of 21.6 km/hr when it encounters a 12.8 m long slope of angle `30^0` figure. `1/2sqrt3`. Shwo tht no matter how hard the driver applies the brakes, tehcar will reach the bottim with a speed greater than 36 km/hr. Take `g=10 m/s^2`

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