Mechanics Applied to EngineeringLongmans, Green and Company, 1904 - 770 páginas |
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Página 4
... constant , but the velocity is changing at every instant . Velocity and speed , however , have the same dimensions . The unit of velocity is usually taken as 1 foot per second . Velocity in feet ) space ( feet ) traversed in a given ...
... constant , but the velocity is changing at every instant . Velocity and speed , however , have the same dimensions . The unit of velocity is usually taken as 1 foot per second . Velocity in feet ) space ( feet ) traversed in a given ...
Página 6
... constant , and therefore the velocity increases directly as the time . If the body start from rest , when v1 is the zero , mean velocity over any inter- val of time will be V2 Initial Velocity Velocity 1 2 3 Time in seconds FIG . 3 . 2 ...
... constant , and therefore the velocity increases directly as the time . If the body start from rest , when v1 is the zero , mean velocity over any inter- val of time will be V2 Initial Velocity Velocity 1 2 3 Time in seconds FIG . 3 . 2 ...
Página 8
... constant velocity , it must not be imagined that no force is required to draw it ; the force exerted by the engine produces a positive acceleration , while The poundal unit is never used by engineers . the friction on the axles , tyres ...
... constant velocity , it must not be imagined that no force is required to draw it ; the force exerted by the engine produces a positive acceleration , while The poundal unit is never used by engineers . the friction on the axles , tyres ...
Página 9
... constant , that for all practical purposes we assume that the acceleration of gravity is constant ( the extreme variation is about one - third of one per cent . ) . Consequently for practical purposes we compare masses by their weights ...
... constant , that for all practical purposes we assume that the acceleration of gravity is constant ( the extreme variation is about one - third of one per cent . ) . Consequently for practical purposes we compare masses by their weights ...
Página 17
... constant , then the length of the line op would also be constant , and the hodo- graph would become the arc of a circle , and the only change in the velocity would be the change in direction q1 . Centrifugal Force . If a heavy body be ...
... constant , then the length of the line op would also be constant , and the hodo- graph would become the arc of a circle , and the only change in the velocity would be the change in direction q1 . Centrifugal Force . If a heavy body be ...
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Términos y frases comunes
acceleration angle angular velocity balance weight balls beam bearing bending bending moment bending-moment diagram body Calculate cent centre of gravity centrifugal circle coefficient compression connecting-rod constant crank Crown 8vo curve cylinder deflection diameter direction distance efficiency elastic limit ELEMENTARY energy engine equal feet per second Find flange flywheel force acting given governor hence horizontal Illustrations increase inertia length load material maximum mechanism metal method moment of inertia neutral axis orifice parallel pipe piston plane plate polygon pressure pulley pump R₁ radius of gyration ratio revolutions per minute rivets rotation shaft shear shear stress shown in Fig side speed square inch strain stress stroke strut surface tangent tensile tensile stress tension tons per square triangle turbine V₁ valve vanes varies vertical virtual centre W₁ Watt governor wheel Young's modulus
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