Question #129976

A pack of 25 kg with wooden roofs in 1 man has a 35 slope

pushing it to the roof. Between previously installed wooden roof coverings and the package

The kinetic friction coefficient is 0.32. 0.2 m / s2 of the package

up the roof with the acceleration

Find the force required to push it. (Take g = 9.8 m / s2.)

pushing it to the roof. Between previously installed wooden roof coverings and the package

The kinetic friction coefficient is 0.32. 0.2 m / s2 of the package

up the roof with the acceleration

Find the force required to push it. (Take g = 9.8 m / s2.)

Expert's answer

"ma=F-mg\\sin{35}-\\mu mg \\cos{35}\\\\25(0.2)=F-(25)(9.8)\\sin{35}\\\\-0.32 (25)(9.8) \\cos{35}"

"F=210\\ N"

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