A 68 kg crate is dragged across a floor by pulling on a rope attached to the crate and inclined 13° above the horizontal. (a) If the coefficient of static friction is 0.51, what minimum force magnitude is required from the rope to start the crate moving? (b) If Mk = 0.26, what is the magnitude of the initial acceleration (m
A 68 kg crate is dragged across a floor by pulling on a rope attached to the crate and inclined 13° above the horizontal. (a) If the coefficient of static friction is 0.51, what minimum force magnitude is required from the rope to start the crate moving? (b) If Mk = 0.26,
what is the magnitude of the initial acceleration (m/s^2) of the crate?
A crate of mass m=68 kg, is dragged across a floor by pulling on a rope attached to the crate and inclined 13° above the horizontal as shown in fig-1
The coefficient of static friction μs = 0.51 and coefficient of kinetic friction μk = 0.26
fig-1
Forces acting on crate are
(1) Weight W=mg , due to gravity
(2) Normal reaction N, due to contact with floor
(3) Applied force, F on the rope
(4) Friction f , due to tendency of motion or motion of crate relative to floor
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