The coefficients of static and kinetic friction between the crate and the floor are us = 0.3 and μk = 0.2, respectively. The weight of the crate is W = 150 lb. Let 0 = 30° and P = [P] lb. r) Determine the friction force F on the floor. X

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.