 | Elias Loomis - Physics - 1858 - 374 pages
...the endless screw. By the addition of a wheel, the effect of the screw is increased in the ratio of the radius of the axle to the radius of the wheel. The endless screw is employed in rig. 06. the engine for graduating the circles of astronomical instruments.... | |
 | Benjamin Silliman - Physics - 1859 - 750 pages
...long arm, is the radius of the wheel. Hence, P : W::cb:ac The wheel and axle is in equi^ __ ^ librium, when the power is to the weight as the radius of the axle is to the radius of the wheel. In one revolution of the machine, the power descends through a space... | |
 | Stephen Parkinson - Mechanics - 1863 - 408 pages
...forces P, W acting at arms MO, ON, and there will be equilibrium if P. MO = W. NO, P NO or .= f; ie if the power is to the weight as the radius of the axle is to the radius of the wheel. 101. Obs. If the thickness of the ropes cannot be neglected, we must... | |
 | University of Cambridge - 1864 - 694 pages
...directly out of the aforenamed Propositions. Mechanical Powen. Definition of Wheel and Axle. Prop. 10. There is an equilibrium upon the wheel and axle when...the radius of the axle to the radius of the wheel. Definition of Pulley. Prop. 11. In the single moveable pulley where the strings are parallel, there... | |
 | Thomas Lund - Hydrostatics - 1864 - 188 pages
...equilibrium. 4. Describe the Wheel-and-Axle ; and prove there is equilibrium upon the Wheel-and-Axle, when the Power is to the Weight as the radius of the Axle to the radius of the Wheel. B. Define Velocity, and prove that if P and W balance in that system of pulleys, in which each pulley... | |
 | Thomas Lund - Hydrostatics - 1864 - 204 pages
...Powers. 36. Definition of Wheel-and-Axle. 37. PROP. X. There is an equilibrium upon the Wheel-and-Axle, when the power is to the weight as the radius of the axle to the radius of the wheel. 40. Definition of Pulley. 41. PROP. XL In the single moveable pulley, where the strings are parallel,... | |
 | University of Calcutta - 1864 - 388 pages
...horizontal line distant 5 feet from, each other, find the tension of each string. 8. There is equilibrium on the wheel and axle, when the power is to the weight as the radius of the axle is to the radius of the wheel. 10. A. rod 11 inches long has a weight of 7 ounces at one end and one... | |
 | John Charles Buckmaster - Mechanics - 1864 - 204 pages
...radius of the wheel ce the long arm, and P and W the power and resistance. There is equilibrium in the wheel and axle when the power is to the weight, as the radius of the ancle is to the radius of the wheel. P : W = radius of axle : to radius of wheel; that is, ; P: W =... | |
 | Robert William Fraser - 1866 - 346 pages
...radius, and BC the radius of the axle, P the power, and W the weight, the ratio may be thus expressed : the power is to the weight as the radius of the axle is to the radius of the wheel. P : W :: BC : AC Fi«'85' , Hence: P.AC=W.BC JL _ °rBC W-AC. "Example... | |
 | James McDowell - Mechanics - 1867 - 120 pages
...radius of the axle is to the radius of the wheel. The converse is manifestly true, namely, TfPbe to W as the radius of the axle to the radius of the wheel, there will be equilibrium. For P and W are two parallel forces, and therefore their resultant will... | |
| |
There is an equilibrium upon the wheel and axle when the power is to the weight as the radius of the axle to the radius of the wheel. 
