2. A horizontal force of 805 N is needed to drag a crate across a horizontal floor at a constant speed. How much work do you do on the crate when moving it 22 m across the floor?
WF
3. An airplane passenger carries a 223 N suitcase up the stairs, a displacement of 5.3 m
horizontally and 5.6 m vertically.
a) How much work does the passenger do?
b) The same passenger carries the same suitcase back down the same stairs. How
much work does the passenger do now?
the floor