Lessons in Elementary Mechanics Introductory to the Study of Physical Science: Designed for the Use of Schools and of Candidates for the London Matriculation, Preliminary Scientific 1st M.B., and Other Examinations. With Numerous ExercisesLongmans, Green, and Company, 1875 - 306 páginas |
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Términos y frases comunes
angle of 30 ball beam body falls body is projected body moves body weighing centre of gravity coefficient of friction crown 8vo distance energy equation equilibrium feet per second find the resultant find the space find the tension find the velocity fulcrum hang heat heavy body horizontal inclined plane kinetic energy length lever machine magnitude mass measure mechanical advantage miles an hour moveable pulleys number of forces opposite directions P₁ parallel forces parallelogram parallelogram of forces particles passes perpendicular pressure produce projected upwards projected vertically upwards represented resistance rest right angles rises sides space described straight line string Suppose surface triangle uniform acceleration uniform velocity unit of force units of momentum velocity of 20
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Página 160 - Find the relation between the power and the weight in that system of pulleys in which each string is attached to the weight, the strings being parallel and the weights of the pulleys being neglected.
Página 88 - Every body continues in a state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by a force impressed upon it.
Página 166 - If a moving point possess simultaneously velocities which are represented in magnitude and direction by the two sides of a parallelogram drawn from a point, they are equivalent to a velocity which is represented in magnitude and direction by the diagonal of the parallelogram passing through the point.
Página 255 - ... the centre of gravity of a body is the point at which acts the resultant of all the forces, caused by the earth's attraction upon the particles, of which the body is composed. The centre of gravity...
Página 176 - FIG. 57. three forces can be represented by the sides of a triangle taken in order.
Página 235 - If two forces acting on a point are represented in magnitude and direction by two sides of a triangle, under what circumstances will the third side correctly represent their resultant?
Página 240 - Prove that the algebraic sum of the moments of two concurrent forces about any point in their plane is equal to the moment of their resultant about the same point.
Página 120 - any cause which tends to change a body's state of rest or of uniform motion in a straight line.
Página 306 - An Edition, printed in Pencil ink, of the Ready Writer, Books I. to VIII. marked severally Books A to H may also be had, price Threepence each Book. Combes, Stevens, and Hole's Complete Writer ; a Set of 16Graduated CopyBooks, on Fine Paper, price 4».