A Text Book of Elementary Mechanics: For the Use of Colleges and Schools (Google eBook)

Wiley, 1903 - Mechanics - 291 pages

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Page 63 - in a straight line, except in so far as it may be compelled by impressed forces to change that state. (2) Change of motion is proportional to the impressed force, and takes place in the direction of the straight line in which the force acts. (3) To every action there is always an equal and contrary reaction; or,
Page 63 - force, and takes place in the direction of the straight line in which the force acts. (3) To every action there is always an equal and contrary reaction; or, the mutual actions of two bodies are always equal and opposite in
Page 63 - are: (1) Every body continues in a state of rest, or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state. (2) Change of motion is proportional to the impressed force, and takes place in the direction of the straight line in which the force acts. (3) To every action there is always an equal and contrary reaction;
Page 58 - which Every particle of matter attracts and is attracted by every other particle with a force which varies directly as the product of the masses and inversely as the square of the
Page 235 - Power acts along the plane, the Power is to the Weight as the height of the plane is to the length.
Page 58 - with a force which varies directly as the product of the masses and inversely as the square of the
Page 161 - forces with respect to any point in their plane is equal to the moment of their resultant. Let
Page 232 - each force is proportional to the sine of the angle between the directions of the other two.
Page 166 - (2) The algebraic sum of the moments of the forces about any point in the plane must be equal to
Page 118 - amount of heat required to raise one pound of •water one degree in temperature.