what is force ? what is weight? what is velocity?
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FORCE : The push or pull on an object is called force.
SI unit is Newton.
WEIGHT : The weight of an object is the measure of the intensity of the force imposed on this object by the local gravitational field.
SI unit is newton.
VELOCITY : Velocity can be defined as the displacement of an object with respect to time.
SI unit is metre/second (m/s) .
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force
a push or pull is defined as force
SI unit is newton
there are two types of force
Balanced force
unbalanced force
Weight
----------------
the force by which a object is attracted towards towards earth
SI unit is newton
weight =m*g
it can be zero at the centre of the earth
velocity
------------
rate of change of displacement
SI unit is m/s
v=s/t
it is a vector quantity
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