378 



INDEX. 



Bodily, 118; Positional, 135, 152; 



Motional, 135; Eelativity of, 360 

 Foucault's Pendulum, 358 

 Friction, 114; Coefficient of, 115; on 



curve, 174, 187, 189; on surface, 192; 



in rolling and sliding, 239 ; Impulsive, 



272 

 Frame of Reference, 5, 7, 93, 361 



Galilei, 45, 100 



Gravitation, 96; Constant of, 97, 374; 

 Work done by, 128; Motion of two 

 bodies under, 155, 156; Frame of re- 

 ference for, 97, 366 ; Universal, 365 ; 

 Units, 374 



Gravity, 43, 94, 179, 352, 356; Work 

 done by, 127; Free motion under, 

 148; Corrections of, 151, 353 



Gyration, radius of, 230 



Harmonic motion, 47; Composition of, 

 49; Production of , 149 ; of Pendulum, 

 178; of oscillating system, 287; re- 

 sisted, 196; in line turning uniformly, 

 360 



Heat, generated in collision, 257 



Hertz, 141 



Huygens, 236 



Impulse, 90; internal, 110, 271; effect 



of, on elastic system, 261 

 Impulsive motion, 91, 92, 109, 264, 275, 



309 

 Inertia, 99; Moment of, 228; Ellipse 



of, 230 



Inflexions, Circle of, 235 

 Initial Motion, 278, 308 

 Inverse Square, Law of, 56, 58, 63 



Kinematic Conditions, 241, 301, 302, 305 

 Kinetic Energy, 105; Change of, 134, 



183, 189 ; produced by impulse, 138, 



270 ; lost in collision, 262 

 Kinetic Reaction, 90, 103; of rigid body, 



233 ; Moment of, 104 



Lagrange, 143 

 Laws of Motion, 100 



Notion of, 87 ; Determination of, 



95 ; Measurement of, 98 ; essential 

 to Mechanics, 101, 142 



Measurement, Theory of, 371 



Mechanics, Postulates of, 93, 361 



Molecular hypothesis, 142 



Momenta! equivalents, 230 



Moment, of Localised Vector, 18 ; Theo- 

 rem of, 21 



Momentum, 90, 103; of rigid body, 232; 

 Moment of, 104 ; Conservation of, 108, 

 147, 364; Change of, 264, 269; 

 Problems illustrating, 293 



Newton, 51, 56, 100, 154, 257 



OsciUation, 178, 180, 286, 296 

 Osculating plane, of path of particle, 

 193 



Parabolic motion, 44, 148 



Parallelogram, of localised vectors, 17 ; 

 of forces, 101 



Particle, Notion of, 42, 86, 87; Dyna- 

 mics of, 145, 172; inadequacy of, 142 



Path, 32 



Pendulum, Simple, 178; Conical, 191; 

 Bigid, 236; Simple equivalent, 288; 

 Foucault's, 358 



Planetary motion, 97, 157 



Plumb-line, 352, 354 



Poisson, 259 



Position, Determination of, 3 



Potential, 129 



Potential energy, 126; Localisation of, 

 132 ; of body in field, 132 ; of gravi- 

 tating system, 129; due to gravity, 

 130 ; of stretched string, 131 



Power, 138 



Pressure, 99, 114; on a curve, 172, 183, 

 187, 189 ; on a surface, 193 



Problem of Two Bodies, 154 



Projectile, 44, 196, 199 



Pull, of a locomotive, 174 



Quantity, 372 ; of matter, 98 



Range, of projectile, 46, 197 



Reaction, of bodies in contact, 113, 117 ; 



of string in contact with surface, 120 ; 



initial, 278 



