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When the jet-powered car Spirit of America went out of control during a test drive at Bonneville

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When the jet-powered car Spirit of America went out of control during a test drive at Bonneville Salt Flats, Utah, it left skid marks about 9.5 km long. 

(a) If the car was moving initially at a speed of v = 708 km/h, estimate the co-efficient of kinetic friction μk. 

(b) What was the kinetic energy K of the car at time t = 60 s after the brakes were applied? Take the mass of the car to be 1250 kg.

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a Speed 708 kmh Here W f K 0 k mgs 12mv 2 So The k i...View the full answer


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Sultan Ghulam Dastgir
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