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Class 10 Class 12
A projectile is projected horizontally with velocity u. What will be the velocity of the projectile after time t ?

Let a projectile be projected with velocity u in horizontal direction.

If  are X and Y components of velocity at any instant, then

Now manitude of resultant velocity is,

The angle which the velocity vector makes with horizontal is,

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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 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