(a) Figure Q1 shows a lorry delivering a 250 kg crate and the coefficient of static friction between crate and flat bed of the lorry is us = 0.4. Assuming it starts from rest with a constant acceleration, calculate the fastest time for the driver to reach a final speed of 16km/h so that the crate does not slip. A car is traveling at 10 km/h when the driver applies brakes and due to the momentum, it skids 3 m before stopping. Predict the skid distance if the same car is traveling at 80 km/h while braking. (b)
(a) Figure Q1 shows a lorry delivering a 250 kg crate and the coefficient of static friction between crate and flat bed of the lorry is us = 0.4. Assuming it starts from rest with a constant acceleration, calculate the fastest time for the driver to reach a final speed of 16km/h so that the crate does not slip. A car is traveling at 10 km/h when the driver applies brakes and due to the momentum, it skids 3 m before stopping. Predict the skid distance if the same car is traveling at 80 km/h while braking. (b)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Figure Q1
Transcribed Image Text:Q1 (a) Figure Q1 shows a lorry delivering a 250 kg crate and the coefficient of static friction
between crate and flat bed of the lorry is us = 0.4. Assuming it starts from rest with a
constant acceleration, calculate the fastest time for the driver to reach a final speed of
16km/h so that the crate does not slip.
A car is traveling at 10 km/h when the driver applies brakes and due to the momentum,
it skids 3 m before stopping. Predict the skid distance if the same car is traveling at 80
km/h while braking.
(b)
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