A 7453 N piano is to be pushed up a(n) 4.04 m frictionless plank that makes an angle of 25.9� with the horizontal.

Calculate the work done in sliding the piano up the plank at a slow constant rate.
Answer in units of J

1 answer

m*g = 7453 N.

m*g = 7453 N.

Fp = 7453*sin25.9 = 3256 N. = Force
parallel to incline.

Fap = Fp = 3256 N. = Force applied.

Work = F * d = 3256 * 4.04 = 13,152 J.

fp =