9. a sailor pulls a boat along a dock using a rope at an angle of 60.0° with the
horizontal. how much work does the sailor do if he exerts a force of 255 n
on the rope and pulls the boat 3.00 m? a girl pulls a wagon along a level path
for a distance of 44 m. the handle of the wagon makes an angle of 22°
above horizontal. if she pulls on the handle with a force of 87 n, how much
work is done?