Posted by Lilly on Friday, November 11, 2011 at 11:23am.
Wc = 130kg * 9.8N/kg = 1274N.
Fc = 1274N @ 0deg.
Fp = 1274sin(0) = 0 = Force parallel to
floor.
Fv = 1274cos(0) = 1274N. = Force perpendicular to floor.
Ff = u*Fv = 0.5 * 1274 = 637N. = Force
of friction.
Fn = Fap - Fp - Ff = ma = 0. a = 0.
Fap - 0 - 637 = 0,
Fap = 637N. = Force applied.
Work = Fd = 637 * 10.1 = 6434J.
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