A 225 kg piano is rolled up a 6.0 m ramp at a angle of 30 degrees , the men pushing the piano exert a combined force of 1560 N parallel to the ramp surface .
(a) What is the AMA ?
(b) What is the IMA of the ramp ?
(c) What is the work in ?
(d) What is the work out ?
(e) What is the efficiency ?
. . . continues
Click to Purchase Solution