5. The coefficient of static friction between the flat bed of the truck and the crate it carries as shown in Figure 5 is

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5 The Coefficient Of Static Friction Between The Flat Bed Of The Truck And The Crate It Carries As Shown In Figure 5 Is 1 (47.76 KiB) Viewed 41 times

5. The coefficient of static friction between the flat bed of the truck and the crate it carries as shown in Figure 5 is Ms = 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. (6 marks) (b) Determine the maximum acceleration a max 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. (13 marks) (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. (6 marks) Total [25 marks] SES 10 Figure 5