To push a 32 kg crate up a frictionless incline, angled at 34° to the horizontal, a worker exerts a force of 280.6 N, parallel to the incline. As the crate slides 1.50 m,
a) How much work is done on the crate by the worker's applied force?
b) How much work is done on the crate by the gravitational force on the crate?
c) How much work is done on the crate by the normal force exerted by the incline on the crate?
d) What is the total work done on the crate?