## Book Store

Currently only available for.
CBSE Gujarat Board Haryana Board

## Previous Year Papers

Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only available for.
Class 10 Class 12
How can you explain that the flying of a bird is an example of resultant of two vectors?

Flying of a bird is an example of resultant of two vectors.

i) When the bird flies, it strikes the air with wings A and B towards O along

ii) Action and reaction are opposite. Therefore, the air strikes the wings in opposite direction i.e. along .

iii) The resultant of these vectors is in the upward direction which balances the weight of the bird.

149 Views

Give three examples of scalar quantities.

Mass, temperature and energy
769 Views

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 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.
1212 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