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प्रश्न
A vehicle is moving along the positive x-direction, if a sudden brake is applied, then ______
विकल्प
the frictional force acting on the vehicle is along negative x-direction
the frictional force acting on the vehicle is along the positive x-direction
no frictional force acts on the vehicle
the frictional force acts in a downward direction
उत्तर
A vehicle is moving along the positive x-direction, if a sudden brake is applied, then the frictional force acting on the vehicle is along the negative x-direction.
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