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Degree of Freedom

A vector of l...

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A vector of length l is turned through the angle θ about its tail. What is the change in the position vector of its head? why should we take 180 -theta and why not 60 degree? when should we use phi value instead of theta?

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Q. A vector of length

l

is turned through the angle

θ

about its tail. What is the change in the position vector of its head-

Q. A vector of length l is turned through the angle

θ

about its tail. What is the magnitude change in the position vector of its head?

Q. A vector of length

ℓ

is turned through the angle

θ

about its tail then the change in the position of vector's head is :-

\to a

is turned without a change in its length through a small angle

d θ

. Find the value of

| Δ \to a |

Δ

\to a

is turned without a change in its length through a small angle

d θ

| △ \to a |

△ a

are respectively:

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Degree of Freedom

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