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Class 10 Class 12
A body is projected with velocity u from the top of building h meter high. Find the angle of projection so that it falls at farthest point.

Given, a body is projected with velocity u.
Height of the building = h

To find - angle of projection  = ?

Let the stone be projected at angle θ to make it fall at farthest point R from the foot of tower.

The equation of trajectory of body is given by,

is the required angle og projection so that the body falls at the farthest point.

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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.
1212 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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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

Give three examples of scalar quantities.

Mass, temperature and energy
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