define the following and write their Si units
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Speed:Distance travelled per unit time is Called speed. It is scalar quantity and S.I. unit is meter / second.
Velocity: Distance travelled per unit time in a given direction is called velocity of a body.
It is vector quantity and S.I unit is m/ s.
The value of velocity may be positive , negative or 0.
Acceleration: The rate of change of velocity is called acceleration .
It is vector quantity and its S.I unit ism/ s^2.
Velocity: Distance travelled per unit time in a given direction is called velocity of a body.
It is vector quantity and S.I unit is m/ s.
The value of velocity may be positive , negative or 0.
Acceleration: The rate of change of velocity is called acceleration .
It is vector quantity and its S.I unit ism/ s^2.
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