Lessons in Elementary Mechanics, Introductory to the Study of Physical Science: Designed for the Use of Schools and of Candidates for the London Matriculation and Other Examinations, with Numerous ExercisesLongmans, Green and Company, 1896 - 377 pages |
Autres éditions - Tout afficher
Lessons in Elementary Mechanics, Introductory to the Study of Physical ... Sir Philip Magnus Affichage du livre entier - 1892 |
Lessons in Elementary Mechanics Introductory to the Study of Physical ... Sir Philip Magnus Affichage du livre entier - 1875 |
Expressions et termes fréquents
20 feet axle ball body is projected body moves body weighing body whose mass called centimetres centre of gravity coefficient of friction coefficient of restitution cord distance traversed equation equilibrium exerted feet per second find the distance find the force find the velocity foot-pounds force equal forces acting fulcrum grams hang heat heavy body impact inches June kilograms kinetic energy length lever magnitude measure mechanical advantage metres per second miles an hour minute movable pulleys opposite direction parallelogram particles position poundals produce projected vertically upwards pull quantity of matter ratio represent resistance rest resultant right angles rises sliding smooth inclined plane stone straight line supported supposed surface taking g triangle uniform acceleration uniform velocity unit of force unit of momentum velocity of 20 velocity of projection weight wheel
Fréquemment cités
Page 127 - Every body continues in its 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.
Page 304 - ... the algebraic sum of the moments of the forces about any point in their plane must likewise vanish.
Page 129 - Change of motion is proportional to the impressed force and takes place in the direction of the straight line in which the force acts.
Page 124 - A mass of 6 ounces slides down a smooth inclined plane, whose height is half its length, and draws another mass from rest over a distance of 3 feet in 5 seconds along a horizontal table which is level with the top of the plane over which the string passes ; find the mass on the table.
Page 168 - The quantity of heat necessary to raise the temperature of a pound of water...
Page 56 - A boat is rowed on a river so that its speed in still water would be 6 miles per hour. If the river flow at the rate of 4 miles per hour, draw a figure to shew the direction in which the head of the boat must point so that the motion of the boat may be at right angles to the current.
Page 181 - If the coefficient of friction between the body and the plane is 0-3, what number of units of work is done against friction ? Ans.
Page 225 - Find the ratio of the power to the weight, when there is equilibrium in the system of pulleys in which each pulley hangs by a separate string ; first, neglecting, secondly, taking account of the weights of the pulleys.
Page 125 - ... by a string which passes over a pulley at the edge of the table and hangs vertically downwards.
Page 301 - Conditions of Equilibrium of any number of forces acting in one plane at different points of a rigid body. — We are now in a position to give the results of the solution of the problem (with respect to forces in one plane) which we stated at the opening of this chapter to 1 e the problem of Statics.