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 = 834 kg; the truck has a mass of M = 8750 kg. According to the truck manufacturer, the truck can accelerate from 0 to 55 mph in 26.0 s, but this does not account for the additional mass of the log. Calculate the minimum coefficient of static friction µ, needed to keep the log in the back of the truck. Hs = According to the scientific literature, the coefficient of static friction between the log and the trailer bed should be roughly 0.840. Given this fact, select the most accurate statement. The results are not conclusive. There is little chance the log could have slid out the back. The police officer is correct. The log posed a real danger.

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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 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 = 834 kg; the truck has a mass of M = 8750 kg. According to the truck manufacturer, the truck can
accelerate from 0 to 55 mph in 26.0 s, but this does not account for the additional mass of the log. Calculate the minimum
coefficient of static friction 4, needed to keep the log in the back of the truck.
Hs =
According to the scientific literature, the coefficient of static friction between the log and the trailer bed should be roughly 0.840.
Given this fact, select the most accurate statement.
The results are not conclusive.
O There is little chance the log could have slid out the back.
O The police officer is correct. The log posed a real danger.
Note that state laws typically describe the conditions under which cargo needs to be secured. Violation of these requirements is a
civil violation.
Transcribed Image Text: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 = 834 kg; the truck has a mass of M = 8750 kg. According to the truck manufacturer, the truck can accelerate from 0 to 55 mph in 26.0 s, but this does not account for the additional mass of the log. Calculate the minimum coefficient of static friction 4, needed to keep the log in the back of the truck. Hs = According to the scientific literature, the coefficient of static friction between the log and the trailer bed should be roughly 0.840. Given this fact, select the most accurate statement. The results are not conclusive. O There is little chance the log could have slid out the back. O The police officer is correct. The log posed a real danger. Note that state laws typically describe the conditions under which cargo needs to be secured. Violation of these requirements is a civil violation.
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