Lessons in elementary mechanicsLongmans, Green, 1876 - 312 σελίδες |
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Æneid axle ball beam body falls body is projected body moves body weighing centre of gravity coefficient of friction crown 8vo distance equal equation equilibrium feet per second find the resultant find the space find the tension find the velocity fulcrum hang heat heavy body Hence 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 smooth space described straight line string suppose surface terminal velocities tion triangle uniform acceleration uniform velocity unit of force units of momentum velocity of 20 wheel
Δημοφιλή αποσπάσματα
Σελίδα 76 - Change of motion is proportional to the impressed force and takes place in the direction of the straight line in which the force acts.
Σελίδα 308 - Historical and Critical Commentary on the Old Testament; with a New Translation. By MM KALISCH, Ph.D. Vol. I. Genesis, 8vo. l8s. or adapted for the General Reader, 12s. Vol. II. Exodus, 15^. or adapted for the General Reader, i2s. Vol. III. Leviticus, Part I. 15^. or adapted for the General Reader, 8*.
Σελίδα 305 - Text-Books of Science, Mechanical and Physical, adapted for the use of Artisans and of Students in Public and other Schools.
Σελίδα 74 - 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.
Σελίδα 245 - ... 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...
Σελίδα 225 - 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?
Σελίδα 284 - Three forces in equilibrium act at the same point ; prove that each force is proportional to the sine of the angle between the other two forces.
Σελίδα 276 - In the case of two forces which act along intersecting lines, show that the sum of the moments of the forces with respect to any point in the plane of the lines equals the moment of their resultant with respect to the same point.
Σελίδα 230 - 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.
Σελίδα 40 - How far will it roll before it comes to rest, the inclination of the plane to the horizon being 30° ? Also, how far will the ball be from the starting-point after 5 sees, from the beginning of motion ? — Matriculation, June 1874.