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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 hat 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= 934 kg; the truck has a mass of M = 8.90 × 10³ kg. According to the truck manufacturer, the ruck can accelerate from 0 to 55 mph in 24.0 s, but this does hot account for the additional mass of the log. Calculate the minimum coefficient of static friction μ, needed to keep the log n the back of the truck. H₂ = M m

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 hat 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= 934 kg; the truck has a mass of M = 8.90 × 10³ kg. According to the truck manufacturer, the ruck can accelerate from 0 to 55 mph in 24.0 s, but this does hot account for the additional mass of the log. Calculate the minimum coefficient of static friction μ, needed to keep the log n the back of the truck. H₂ = M m

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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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 = 934 kg; the truck has a mass of M = 8.90 × 10³ kg. According to the truck manufacturer, the truck can accelerate from 0 to 55 mph in 24.0 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. μs = Given this fact, select the most accurate statement. M According to the scientific literature, the coefficient of static friction between the log and the trailer bed should be roughly 0.840. 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 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 = 934 kg; the truck has a mass of M = 8.90 × 10³ kg. According to the truck manufacturer, the truck can accelerate from 0 to 55 mph in 24.0 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. μs = Given this fact, select the most accurate statement. M According to the scientific literature, the coefficient of static friction between the log and the trailer bed should be roughly 0.840. 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 Note that state laws typically describe the conditions under which cargo needs to be secured. Violation of these requirements is a civil violation.
Expert Solution
Step 1

Given data:

Mass of log , Ml = 934 kg

Mass of truck, M = 8.9 x 103 kg

Acceleration => 0 to 55 mph

time taken , t = 24 s

 

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