While hauling a log in the back of a flatbed truck, a driver is pulled over by the state police. Although the log cannot

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While Hauling A Log In The Back Of A Flatbed Truck A Driver Is Pulled Over By The State Police Although The Log Cannot 1 (138.41 KiB) Viewed 50 times

While hauling a log in the back of a flatbed truck, a driver is pulled over by the state police. Although the log cannot roll sideways, the police claim that the log could have slid out the back of the truck when accelerating from rest. The driver claims that the truck could not possibly accelerate at the level needed to achieve such an effect. Regardless, the police write a ticket, and the driver's court date is approaching. The log has a mass of m= 849 kg; the truck has a mass of M = 9650 kg. According to the truck manufacturer, the truck can accelerate from 0 to 55 mph in 28.0 s, but this does not account for the additional mass of the log. Calculate the minimum coefficient of static friction μg needed to keep the log in the back of the truck. Hs = Given this fact, select the most accurate statement. M The police officer is correct. The log posed a real danger. There is little chance the log could have slid out the back. The results are not conclusive. m According to the scientific literature, the coefficient of static friction between the log and the trailer bed should be roughly 0.840. Hs