A 7159 N piano is to be pushed up a(n) 2.26 m

frictionless plank that makes an angle of 25.6

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

distance up = 2.26 sin 25.6

work = m g h = 7159 * 2.26 sin 25.6