A 7.0 kg box is raised from rest a distance of 3.0 m by a vertical force of 110 N.
A. What is the total work done on the block when the block slides 1.4 m (measured along the incline)?
B. What is the speed of the block after it has slid 2.0 m if it starts from rest?
C. What is its speed after 2.0 m if it starts with an initial speed of 1.7 m/s?