5. The coefficient of static friction between the flat bed of the truck and the crate it carries as shown in Figure 5 is u, = 0.30. (a) Set up the appropriate global axes system and draw the free body, kinematic and kinetic diagrams of the crate on the bed. (b) Determine the maximum acceleration a and hence the maximum velocity Vmx which the truck can acquire from rest in a distance of 50m up a 10-percent grade if the crate is not to slip backward. (c) If the truck was travelling on a horizontal road with the maximum speed you have determined in part (a) above, would the minimum stopping distance be different than 50 m as given above if the crate is not to slip? Give a brief engineering explanation in support of your answer.

5. The coefficient of static friction between the flat bed of the truck and the crate it carries as shown in Figure 5 is u, = 0.30. (a) Set up the appropriate global axes system and draw the free body, kinematic and kinetic diagrams of the crate on the bed. (b) Determine the maximum acceleration a and hence the maximum velocity Vmx which the truck can acquire from rest in a distance of 50m up a 10-percent grade if the crate is not to slip backward. (c) If the truck was travelling on a horizontal road with the maximum speed you have determined in part (a) above, would the minimum stopping distance be different than 50 m as given above if the crate is not to slip? Give a brief engineering explanation in support of your answer.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Free undamped vibrations

Whenever an object/system displaces in either side of its equilibrium position with the help of an external/internal means, then the object/system moves regularly or randomly on both sides of its equilibrium position. This motion is called vibration. Generally, there are three types of vibration: longitudinal vibration, transverse vibration, and torsional vibration.

Question

5. The coefficient of static friction between the flat bed of the truck and the crate it
carries as shown in Figure 5 is 4, = 0.30.
(a) Set up the appropriate global axes system and draw the free body, kinematic and
kinetic diagrams of the crate on the bed.
(b) Determine the maximum acceleration amax and hence the maximum velocity
Vmax which the truck can acquire from rest in a distance of 50m up a 10-percent
grade if the crate is not to slip backward.
(c) If the truck was travelling on a horizontal road with the maximum speed you have
determined in part (a) above, would the minimum stopping distance be different than
50 m as given above if the crate is not to slip? Give a brief engineering explanation
in support of your answer.
10
Figure 5

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