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Class 10 Class 12

What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can complete the loop?

C.

The question is illustrated in the figure below,

Let, the tension at point A be TA.

Using Newton's second law, we have

Energy at point A =
Energy at point C is,

At point C, using Newton's second law,

In order to complete a loop, Tc
So,

From equation (i) and (ii)

Using the principle of conservation of energy,

The question is illustrated in the figure below,

Let, the tension at point A be TA.

Using Newton's second law, we have

Energy at point A =
Energy at point C is,

At point C, using Newton's second law,

In order to complete a loop, Tc
So,

From equation (i) and (ii)

Using the principle of conservation of energy,

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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

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 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

Give three examples of scalar quantities.

Mass, temperature and energy
769 Views