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Physics Part I

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Class 10 Class 12
Find the angle of projection for which horizontal range is maximum.

Horizontal range is given by,  straight R equals fraction numerator straight u squared sin 2 straight theta over denominator straight g end fraction

R is maximum if sin space 2 straight theta is maximum.

i.e.      space space sin space 2 straight theta space equals space 1

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rightwards double arrow               straight theta equals 45 degree

Horizontal range is maximum when angle of projection is 45°. 

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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. 


814 Views

Give three examples of scalar quantities.

Mass, temperature and energy
769 Views

What is a scalar quantity?

A physical quantity that requires only magnitude for its complete specification is called a scalar quantity.
1212 Views

Give three examples of vector quantities.

Force, impulse and momentum.
865 Views

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