e coefficient of static friction

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Problem 19 A uniform ladder is 10 m long and
weighs 200 N. The ladder leans
against a vertical, frictionless wall
at heighth 8.0 m above the
ground. A horizontal force Fis
applied to the ladder at distance
d = 2.0m from its base (measured
along the ladder).
أ
(a) If the force magnitude is F = 50 N, what is the necessary friction
(magnitude and direction) on the floor to keep the ladder stable?
(b) Suppose the coefficient of static friction between the floor and
the ladder is 0.5, find the maximum magnitude of force F just
before the ladder starts to move.
Transcribed Image Text:Problem 19 A uniform ladder is 10 m long and weighs 200 N. The ladder leans against a vertical, frictionless wall at heighth 8.0 m above the ground. A horizontal force Fis applied to the ladder at distance d = 2.0m from its base (measured along the ladder). أ (a) If the force magnitude is F = 50 N, what is the necessary friction (magnitude and direction) on the floor to keep the ladder stable? (b) Suppose the coefficient of static friction between the floor and the ladder is 0.5, find the maximum magnitude of force F just before the ladder starts to move.
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