A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 194
A will give the total work done. Example.—Find the work done againstgravity when a cage and load weighing W, areraised from a pit H deep by means of a ropehaving a weight W2 (Fig. 198). At first the pull P required at the top of therope is (Wj + W2), and this diminishes graduallyas the cage… … ^-,;„-.-.\£ iW*- W£ r Fio. 108.—Diagram of workdone in hoisting a load. 170 DYNAMICS chap. &■ mg rope alone is DCE, in which W2 is represented by CE. From thediagrams, we have Total work done^WiH +|W2H= (W1 + |W2)H. Energy.—Energy means capability of doing work. A body issaid to possess energy…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
