Suppose the coefficients of static and kinetic friction between the crate and the truck bed are 0.415 and 0.382, respectively.
(a) Does the crate begin to slide at a tilt angle that is greater than, less than, or equal to 23.2°?
(b) Verify your answer to part (a) by determining the angle at which the crate begins to slide.
(c) Find the length of time it takes for the crate to slide a distance of 2.75 m when the tilt angle has the value found in part (b).