Dynamics for BeginnersMacmillan, 1887 - 178 páginas |
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Página 14
... , having started from rest ; shew that if its velocity has been uniformly increasing , it is moving at the end of that quarter of an hour with a speed of 80 miles per hour . ACCELERATION . 18. DEF . When a point is moving 14 DYNAMICS .
... , having started from rest ; shew that if its velocity has been uniformly increasing , it is moving at the end of that quarter of an hour with a speed of 80 miles per hour . ACCELERATION . 18. DEF . When a point is moving 14 DYNAMICS .
Página 30
... horizontal plane ; the friction of the rails etc. is equivalent to a retarding force of 250 poundals , how long will the train take to get up from rest a speed of m miles per hour ? 38. DEF . The mass - velocity ( or , 30 DYNAMICS .
... horizontal plane ; the friction of the rails etc. is equivalent to a retarding force of 250 poundals , how long will the train take to get up from rest a speed of m miles per hour ? 38. DEF . The mass - velocity ( or , 30 DYNAMICS .
Página 31
... speed of 15 miles an hour in going 121 ft . from rest . [ I stone = 14 lbs . ] We have or , Also 15 miles an hour = 22 velos . 2as = v2 , 2α X 121 = = ( 22 ) 2 ; therefore , a = 2 . 20 stone = 20 × 14 lbs . [ Ex . ii . p . 3 ...
... speed of 15 miles an hour in going 121 ft . from rest . [ I stone = 14 lbs . ] We have or , Also 15 miles an hour = 22 velos . 2as = v2 , 2α X 121 = = ( 22 ) 2 ; therefore , a = 2 . 20 stone = 20 × 14 lbs . [ Ex . ii . p . 3 ...
Página 33
... speed of 30 miles an hour ? up 4. A rifle bullet of 1 oz . leaves the barrel of a rifle which is 2 ft . 6 in . long with a velocity of 1200 feet per second ; find the resultant force , supposed uniform , with which it was acted on in ...
... speed of 30 miles an hour ? up 4. A rifle bullet of 1 oz . leaves the barrel of a rifle which is 2 ft . 6 in . long with a velocity of 1200 feet per second ; find the resultant force , supposed uniform , with which it was acted on in ...
Página 41
... speed of 15 miles an hour in 3 seconds ; find the horizontal force which he applies to his own mass , supposing that he attains that speed with uniform acceleration . 7. The man in Question 6 ties a string to a mass of 5 cwt . on a ...
... speed of 15 miles an hour in 3 seconds ; find the horizontal force which he applies to his own mass , supposing that he attains that speed with uniform acceleration . 7. The man in Question 6 ties a string to a mass of 5 cwt . on a ...
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Términos y frases comunes
acceleration acting action additional angle applied Assistant-Master Author ball beginning BOOK Cambridge celos circle College constant Crown 8vo describes direction distance draw Edition elastic ELEMENTARY energy engine English equal EXAMINATION Example Extra fcap fall feet Fellow fixed foot-poundals force force acting friction given Globe 8vo going gravity Greek Hence HISTORY horizontal horizontal plane Illustrations impact impinges impulse inclined increasing initial instant interval Introduction JOHN LATIN Lecturer length light LL.D London Maps mass Master Mathematics measure miles an hour motion moving Notes opposite Oxford particle passes placed plane position poundals preparation produces Professor projected prove Question represent respectively rest resultant revised School seconds secs Series shew smooth speed sphere starting stone straight line string supposing tension tons train Translated TREATISE Trinity College uniform uniformly unit University velocity velos vertical weight yards
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