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Motion in A Plane

Physics Part I

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Class 10 Class 12
A heavy and a light body are dropped from the top of a tower simultaneously. Which will reach the ground first?

During the vertical fall of a body, the time taken for the body to fall is given by,

,

which is independent of the mass of the body.

Hence, both the bodies will reach the ground simultaneously.

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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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Give three examples of scalar quantities.

Mass, temperature and energy
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Give three examples of vector quantities.

Force, impulse and momentum.
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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.

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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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