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स्पेशल क्लास रेलवे अपरेंटिस
An examination for selection of candidates for appointment as Special Class Apprentices in Mechanical Department of Indian Railways will be held by the Union Public Service Commission.

Wednesday 10 August 2011

MEASUREMENT AND KINEMATICS

   MEASUREMENT AND KINEMATICS

Physical Quantity = (numerical value)*(Units)
TYPES OF UNIT
FUNDAMENTAL UNIT- independent of any other units
Example-length (metre)
               Mass(kilogram)
               Time(second)
               Temperature(Kelvin)
               Current(Ampere) etc.
DERIVED UNIT –Depend on any other units
Example-speed
               Energy
               Acceleration
                
*1kg=1000 cm3
Radian = 3600/2ӆ

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