The 100-lbf crate is initially stationary The coefficients of friction between the crate and the inclined surface are μs = 0.20 and μk = 0.16. Determine whether the crate slips if the horizontal force F = 30 lbf. If the crate slips, determine how far the crate moves from its initial position in 2 seconds. Indicate the tendency for motion.
The 100-lbf crate is initially stationary The coefficients of friction between the crate and the inclined surface are μs = 0.20 and μk = 0.16. Determine whether the crate slips if the horizontal force F = 30 lbf. If the crate slips, determine how far the crate moves from its initial position in 2 seconds. Indicate the tendency for motion.
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter7: Gravity
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The 100-lbf crate is initially stationary The coefficients of friction between the
crate and the inclined surface are μs = 0.20 and μk = 0.16. Determine whether the crate slips if the
horizontal force F = 30 lbf. If the crate slips, determine how far the crate moves from its initial
position in 2 seconds. Indicate the tendency for motion.
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Step 1: Free Body diagram
VIEWStep 2: Force equilibrium equation in the perpendicular direction
VIEWStep 3: Motion of the crate due to the static frictional force and the total force in the parallel direction
VIEWStep 4: Force equilibrium equation in the parallel direction
VIEWStep 5: Second kinematic equation
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