Motion in A Plane

Physics Part I

Physics

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A particle moves in a plane with constant acceleration in direction different from initial velocity. Can ever the particle have velocity parallel to acceleration? Explain your answer.Â

A component of initial velocity is in a perpendicular direction to the direction of acceleration. It is given that acceleration remains constant andÂ cannot be reduced to zero.Â

Velocity will be parallel to accelerationÂ if and only if, component of velocity perpendicular to acceleration is zero.Â

Therefore the particle moving in a plane with constant acceleration in direction different from initial velocity can never have velocity parallel to acceleration.

Velocity will be parallel to accelerationÂ if and only if, component of velocity perpendicular to acceleration is zero.Â

Therefore the particle moving in a plane with constant acceleration in direction different from initial velocity can never have velocity parallel to acceleration.

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What is a scalar quantity?

A physical quantity that requires only magnitude for its complete specification is called a scalar quantity.

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What is a vector quantity?

A physical quantity that requires direction along with magnitude, for its complete specification is called a vector quantity.

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What are the basic characteristics that a quantity must possess so that it may be a vector quantity?

A quantity must possess the direction and must follow the vector axioms. Any quantity that follows the vector axioms are classified as vectors.Â

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