 | Thomas Leybourn - 1830 - 630 σελίδες
...sphere of mercury of the same magnitude.. 8. A beam 30 feet long, balances itself upon a point at jrd of its length from the thicker end. But when a weight of lolbs. is suspended at the other end, the prop must be moved two feet towards it to maintain the equilibrium.... | |
 | 1836 - 366 σελίδες
...proportion of the friction to the pressure. 2. A beam 30 feet long, balances itself upon a point at |rd of its length from the thicker end. But when . a weight of 10 Ibs. is suspended at the other end, the prop must be moved two feet towards it to maintain the equilibrium. What is the... | |
 | Alfred Wrigley - 1845 - 222 σελίδες
...feet from the extremity. Required the position of the fulcrum, about which the whole will rest. 56. A beam, 30 feet long, balances itself on a point at...length from the thicker end; but when a weight of Ю Ibs. is suspended from the smaller end, the prop must be moved 2 feet towards it, in order to maintain... | |
 | Richard Potter - 1846 - 190 σελίδες
...diminished. EXAMPLES ON CHAPTERS VI. VII. AND VIII. . 1 . A lever 30 feet long balances itself upon a prop of its length from the thicker end; but when a weight of 10 pounds is suspended at the other end, the prop must be moved 2 feet towards it, to maintain the equilibrium;... | |
 | Harvey Goodwin (bp. of Carlisle.) - 1847 - 136 σελίδες
...of 110 Ibs. at the other. Find the weight of the beam. 17. A beam 30 feet long balances itself upon a point at one-third of its length from the thicker end. But when a weight of 10 Ibs. is suspended at the other end, the prop must be moved two feet towards it to maintain equilibrium. What is the weight... | |
 | Harvey Goodwin (Bishop of Carlisle.) - 1851 - 414 σελίδες
...given force; required the position of this latter fulcrum. V. A beam, 30 feet long, balances about a point at one-third of its length from the thicker end ; but when a weight of lOlbs. is suspended from the smaller end, the fulcrum must be moved 2 feet towards it in order to maintain... | |
 | Harvey Goodwin - 1851 - 196 σελίδες
...about a fulcrum at a distance of b inches from the other end. 14. A beam, 30 feet long, balances about a point at onethird of its length from the thicker end ; but when a weigh! of 10 Ibs. is suspended from the smaller end, the fulcrum must be moved 2 feet towards it in... | |
 | Bombay (India : State). Board of Education - 1851 - 768 σελίδες
...relation of the forces to each other. 12. A beam 30 feet long balances upon a prop 10 feet from one end ; but when a weight of 10 Ibs. is suspended from the thin end the prop has to be moved 2 feet to preserve the equilibrium ; required the weight of the beam.... | |
 | Alfred Wrigley - 1852 - 344 σελίδες
...weight of 20 Ibs. at B be balanced by a weight of 60 Ibs. at A : required the weight of the rod. 200. A beam, 30 feet long, balances itself on a point at...suspended from the smaller end, the prop must be moved 2 feet towards it, in order to maintain the equilibrium. Find the weight of the beam. 201. A uniform... | |
 | Augustus William Smith - 1855 - 368 σελίδες
...„ . 208. EXAMPLES ON CHAPTERS VI., VII., AND VIII. Ex. 1. A beam 30 feet long balances on a prop ^ of its length from the thicker end ; but when a weight of 10 Ibs. is suspended from the other end, the prop must be moved 2 feet toward it to maintain the equilibrium. Required the weight... | |
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A beam, 30 feet long, balances itself on a point at one-third of its length from the thicker end ; but when a weight of 10 Ibs. is suspended from the smaller end, the prop must be moved 2 feet towards it, in order to maintain the equilibrium. 
