Physics for Scientists and Engineers
10th Edition
ISBN: 9781337553278
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 5, Problem 27P
Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the driver is that the load may slide forward, crushing the cab, if the truck stops suddenly in an accident or even in braking. Assume, for example, that a 10 000-kg load sits on the flatbed of a 20 000-kg truck moving at 12.0 m/s. Assume that the load is not tied down to the truck, but has a coefficient of friction of 0.500 with the flatbed of the truck. (a) Calculate the minimum stopping distance for which the load will not slide forward relative to the truck. (b) Is any piece of data unnecessary for the solution?
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Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the driver is that the load may slide forward, crushing the cab, if the truck stops
suddenly in an accident or even in braking. Assume, for example, that a 10,000 kg load sits on the flat bed of a 15,000 kg truck moving at 13.0 m/s. Assume that the load is
not tied down to the truck, but has a coefficient of friction of 0.450 with the flat bed of the truck.
(a) Calculate the minimum stopping distance for the truck for which the load will not slide forward relative to the truck.
m (b) Is any piece of data unnecessary for the solution? (Select all that apply.)
mass of truck
speed of truck
mass of load
coefficient of friction
Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the driver is that the load may slide forward, crushing the cab, if the truck stops suddenly in an accident or even in braking. Assume, for example, that a 9,000 kg load sits on the flat bed of a 25,000 kg truck moving at 13.0 m/s. Assume that the load is not tied down to the truck, but has a coefficient of friction of 0.475 with the flat bed of the truck.(a) Calculate the minimum stopping distance for the truck for which the load will not slide forward relative to the truck.
A 10000-kg load sits on the flatbed of a 20000-kg truck moving at 12.0 m/s. Assume that the load is not tied down to the truck, but has a coefficient of static friction of 0.500 and a coefficient of kinetic friction of 0.400 with the flatbed of the truck. If the truck needs to stop in 10.0 m with constant acceleration, what is the force of friction between the load and the truck when the brake is first applied?
Chapter 5 Solutions
Physics for Scientists and Engineers
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