Physics 111.01 September 26, 2008 PS 4c (11)Problem 1.Static and Kinetic Friction on an incline:A 10 kg crate is placed at rest on an incline plane (s=0.7, k=0.5), whose angle can be adjusted. a.)The maximum angle of the incline for which the crate will stay at rest is: b.)-e.)If the angle of the incline were instead the two amounts shown below, please fill in the rest of the values on the chart below: angle of incline:component of weight acting along incline: (size only)friction force: (size only) (indicate static or kinetic): net force on crate: (size only) acceleration of crate: (size only) 15oN N, Nm/s265oN N, Nm/s2f.)For the 65oangle, find how long it would take the crate to slide down 5 m along the incline. g.)Explain why it is NOT possible for an object which is placed at rest on an inclined plane to then start sliding down with constant speed. m 10 kg θx y mg=98 N θN mg cos θmg sin θf g
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