| 1808 - عدد الصفحات: 556
...water strikes the wheel ; and if we take h, a fourth proportional to g', (c — t;)1 and \g, h will be the height from which a body must fall to acquire the velocity c — v, and will be equal to - — - — - • Wherefore, by a prop, well known in Hydraulics, the... | |
| William Enfield - 1811 - عدد الصفحات: 476
...the triangles BAI, K AI, being similar, BA is equal to -r^— Since, then, AB is equal to four timca the height from which a body must fall to acquire the velocity with which it is AE9 AI9 to be thrown ; ^ (or -r^- its equal) is the same. Consequently (by this Prop.)... | |
| 1813 - عدد الصفحات: 524
...water strikes the wheel; and if we take h, afourth proportional T2 tog * , (c—v) % and \g, h will be the height from which a body must fall to acquire the velocity C—v, and will be— fc ~ v} * • Wherefore, by a 2 § proposition, well known in Hydraulics, the... | |
| Manchester Literary and Philosophical Society - 1813 - عدد الصفحات: 550
...waterstrikes the wheel ; and if we take h, a fourth proportional % (c— • v) * and 4*7, h will be the height from which a body must fall to acquire the velocity <N — v, and will be— (c~ v) * • Wherefore, by a 2g proposition, well known in Hydraulics, the... | |
| Thomas Leybourn - 1819 - عدد الصفحات: 430
...4. Tlit velocity and elevation being given, to fnd the range. ,,* Take; AD =: -, or equal four times the height from which a body must fall to acquire the velocity v ; from o, draw DC, making the angle ADC = ABC; from c, draw BC, parallel to AD, meeting the plane... | |
| 1822 - عدد الصفحات: 520
...is required, these formulas would become v 3 - = l 3 tv 64 1 2s 32 4 v 2s v — 8^/1 — - = 32 t t The value of this force varies in different latitudes,...from which a body must fall to acquire the velocity. 161. In order that a body projected directly upwards, shall rise to a given height, it must receive... | |
| Henry Brougham Baron Brougham and Vaux - 1839 - عدد الصفحات: 532
...reasoning of the demonstration conducting to the solution and not following it synthetically. A is the height from which a body must fall to acquire the velocity at any point D, which the given body moving in the trajectory VIK (sought by the investigation) has... | |
| 1842 - عدد الصفحات: 616
...numbers appear to have been computed for any velocity, », is p = Ibs. for each square foot ; a being the height from which a body must fall to acquire the velocity r. There is certainly a trifling difference between the numbers thus computed and those in the table,... | |
| Henry Brougham Baron Brougham and Vaux, Edward John Routh - 1855 - عدد الصفحات: 512
...reasoning of the demonstration conducting to the solution and not following it synthetically. A is the height from which a body must fall to acquire the velocity at any point D, which the given body moving in the trajectory VIK (sought by the investigation) has... | |
| Thomas Young - 1855 - عدد الصفحات: 804
...of w when Dw would be equal to the force of gravity, and DK = Bl = 2y, we have D =- -jfi or H being the height from which a body must fall to acquire the velocity V/i' since K = 4^77, D = ~ , and27>>= -. Sc/wlium 3. It is natural to imagine that we might obtain... | |
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