Dynamics for BeginnersMacmillan, 1887 - 178 σελίδες |
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Σελίδα 39
... tension of the string ; and the tension of the string is not equal to the weight of the 28 lbs . ; for if it were , the 28 lbs . mass would have acting on it ( i ) a pull equal to the weight of 28 lbs . upwards and ( ii ) its own weight ...
... tension of the string ; and the tension of the string is not equal to the weight of the 28 lbs . ; for if it were , the 28 lbs . mass would have acting on it ( i ) a pull equal to the weight of 28 lbs . upwards and ( ii ) its own weight ...
Σελίδα 40
... tension of the string ; then the resultant external forces acting on the mass of 28 lbs . are its weight directly downwards and the pull of the string directly upwards , that is , 28 × 32 poundals - 7 poundals ; Let this resultant force ...
... tension of the string ; then the resultant external forces acting on the mass of 28 lbs . are its weight directly downwards and the pull of the string directly upwards , that is , 28 × 32 poundals - 7 poundals ; Let this resultant force ...
Σελίδα 41
... tension is equal to the weight of 56 lbs .; if the friction of the ice causes a horizontal retarding force on the sledge equal to of its weight find the acceleration produced . 2. A sledge , weighing 1 ton is pulled on ice by 4 dogs ...
... tension is equal to the weight of 56 lbs .; if the friction of the ice causes a horizontal retarding force on the sledge equal to of its weight find the acceleration produced . 2. A sledge , weighing 1 ton is pulled on ice by 4 dogs ...
Σελίδα 43
... tension of a string at any point of its length is a stress . 54. When two particles act and react the one on the other , the stress causes no alteration in the total mass- velocity of the two particles ; that is , the stress has no ...
... tension of a string at any point of its length is a stress . 54. When two particles act and react the one on the other , the stress causes no alteration in the total mass- velocity of the two particles ; that is , the stress has no ...
Σελίδα 44
... tension of the string . I. The masses are prevented by the string from moving relatively to each other ; hence , we may consider the tension of the string as an internal stress , and consequently the two masses as a single mass . Thus ...
... tension of the string . I. The masses are prevented by the string from moving relatively to each other ; hence , we may consider the tension of the string as an internal stress , and consequently the two masses as a single mass . Thus ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
20 velos 32 celos 32 poundals A. W. VERRALL action of gravity additional velocity Assistant-Master Atwood's machine average velocity ball BEGINNERS BOOK Cambridge carriage circle coefficient of restitution Crown 8vo direction distance passed elastic engine English Example external force Extra fcap feet Fellow of St Fellow of Trinity find the velocity foot-poundals force acting friction Globe 8vo GRAMMAR Greek Hence horizontal plane impinges impulse inclined plane initial velocity instant J. P. MAHAFFY John's College kinetic energy late Fellow LATIN Lecturer LL.D mass m lbs mass-velocity Mathematics miles an hour miles per hour motion number of celos numerous Illustrations Owens College Oxford parabola parallelogram particle pound-velos poundals acting PRIMER Professor projectile prove resultant right angles School Second Edition secs Series shew smooth horizontal plane stone straight line string supposing tension tons train TRIGONOMETRY Trinity College uniform velocity uniformly unit interval University vertical Vocabulary weight yards
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