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Motion in A Plane

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Physics Part I

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Physics

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
A body is thrown with a velocity of 9.8 m/s making an angle of 30o with the horizontal. After what time, will it hit the ground? 

Time of flight is given by, 

straight T space equals space fraction numerator 2 straight u space sinθ over denominator straight g end fraction space
space space space equals space fraction numerator 2 space straight x space 9.8 space straight x space sin space 30 to the power of straight o over denominator 9.8 end fraction

space space space equals space 1 space sec
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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.
835 Views

Give three examples of scalar quantities.

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

Force, impulse and momentum.
865 Views

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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