Question

an inclined plane, which slopes at 37degree is used to raise a 10 kg object to a heghit of 4m if the efficency is 80% determine a,the load (t@ke sin 37=0.6,cos 37 =0.8) b,the cofficent of kinetic friction c,the effort force
bobpursley
I am reading this to mean 20 percent of the work goes to friction.
I understand effort as the force up the plane, what is the term "load" mean?

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