Chapter V

Velocity, 231
ratio of inclined plane, 139
pulley, 103
pulley-block, 112
screw, 143
wheel and axle, 152
wheel and pinion, 161
Vibrations, composition of, 299, 315

W.
Wedge, 139
Weighing machines, 123
scales, 46, 48
Weight caused by gravity, 52
of water, 54
Wheel and axle, 149
and differential pulley, 167
screw, 167
experiments on, 152
formula for, 154
friction in, 153
Table XVIII. 154
velocity, ratio of, 152
Wheel and barrel, 158
formula for, 160
friction in, 158
Table XIX. 159
Wheel and pinion, 160
efficiency of, 161
Table XX. 162
velocity, ratio of, 161
Wheel, centre of gravity of, 61
Wheels, 92
friction, 93
Wheels in Willis apparatus, 348
Willis system of apparatus, 345
Winch, 151
Wind, direction of, 22
Work, 85, 94
Wye Bridge, 215

THE END.

RICHARD CLAY AND SONS, LIMITED, LONDON AND BUNGAY.

End of Project Gutenberg's Experimental Mechanics, by Robert Stawell Ball