A block of mass W is pulled along a rough horizontal plane by a force P inclined an angle e from the horizontal. The coefficient of friction between the plane and the block is f, and the pull is given by the equation P fw Find e when f is minimum. fsin e + cos e A. arcsec f B. arccos f C. arcsin f D. arccot f
A block of mass W is pulled along a rough horizontal plane by a force P inclined an angle e from the horizontal. The coefficient of friction between the plane and the block is f, and the pull is given by the equation P fw Find e when f is minimum. fsin e + cos e A. arcsec f B. arccos f C. arcsin f D. arccot f
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Transcribed Image Text:A block of mass W is pulled along a rough horizontal plane by a force P inclined an angle
e from the horizontal. The coefficient of friction between the plane and the block is f, and
the pull is given by the equation P
fw
Find e when f is minimum.
fsin e + cos e
A. arcsec f
B. arccos f
C. arcsin f
D. arccot f
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