Elementary Introduction to Practical Mechanics: Illustrated by Numerous ExamplesLongmans, 1870 - 324 pages |
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Page ix
... Principles of Statics - Parallelogram of Forces - Principle of Moments -- Applications , viz .: the Lever the Steel - Yard - Equilibrium of Walls - Thrusts of Rafters CHAPTER IV . The fundamental Theorems of Statics PAGE 1 18 36 47 76 ...
... Principles of Statics - Parallelogram of Forces - Principle of Moments -- Applications , viz .: the Lever the Steel - Yard - Equilibrium of Walls - Thrusts of Rafters CHAPTER IV . The fundamental Theorems of Statics PAGE 1 18 36 47 76 ...
Page 62
... Principle of Moments . - A large class of ques- tions has reference to the equilibrium of a body one point W of which is fixed ; in these cases it 62 PRACTICAL MECHANICS .
... Principle of Moments . - A large class of ques- tions has reference to the equilibrium of a body one point W of which is fixed ; in these cases it 62 PRACTICAL MECHANICS .
Page 63
... principle called the PRINCIPLE OF MOMENTS . The definition of the moment of a force is as follows : If P represents any force , and a is any point , and AN is a perpendicular let fall on p's direction , then if the number of units of ...
... principle called the PRINCIPLE OF MOMENTS . The definition of the moment of a force is as follows : If P represents any force , and a is any point , and AN is a perpendicular let fall on p's direction , then if the number of units of ...
Page 67
... Principle of Moments ; the general method of considering this im- portant question is as follows : - Let ABCD represent the section of a wall , the base A B being on the level of the ground ; let it be acted on by a force P along the ...
... Principle of Moments ; the general method of considering this im- portant question is as follows : - Let ABCD represent the section of a wall , the base A B being on the level of the ground ; let it be acted on by a force P along the ...
Page 68
... moment with reference to the point a equals the moment of the weight of the wall with reference to the same ... principle of moments gives us PXCN = WXCM The weight w equals 5600lbs .; см equals 1 foot ; cN , as obtained by mea ...
... moment with reference to the point a equals the moment of the weight of the wall with reference to the same ... principle of moments gives us PXCN = WXCM The weight w equals 5600lbs .; см equals 1 foot ; cN , as obtained by mea ...
Common terms and phrases
ABCD angle of resistance angular angular velocity axis axle beam body brickwork cast iron centre of gravity circle circumference coefficient of friction Crown 8vo cubic foot curve cylinder described determine the number diameter direction distance draw Edition engine epicycloid equal equation equilibrium expended extrados forces acting formula friction frustum given hence horizontal horse-power inclined inclined plane last Example length limiting angle magnitude mass middle point minute modulus moment of inertia motion moving number of units oscillation P₁ parallel forces passing perpendicular plane pressure principle principle of moments Prop pulley R₁ radius raised reaction represent respectively rest resultant right angles rope round screw sliding space square inch steam suppose surface teeth thick thread tion triangle vertical vols wall weight wheel Woodcuts wrought iron
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