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Yakvenalex [24]
2 years ago
13

show that the torsion of the helix is what is the largest value can have for a given value of a? give reasons for your answer.

Mathematics
1 answer:
Semmy [17]2 years ago
3 0

The largest value τ can have for a given value of a = 1/2\left| a \right|. Where the said value is described as τmax.

<h3>What is the reason for the above answer?</h3>

To arrive at the above conclusion, let:

r(t) = (a cos t) i + (a sin t)j + btk, a, b ≥ 0

⇒ τ = b/(a² + b²)

Given the value of τ above, we have to find τmax for given values of a, so that a is constant.

Hence:

dτ/db = [(a² + b²) * 1 - b (2b)]/ (a² + b²)² = 0

a² + b² - 2b² = 0

a² + b² = 0

a² - b² = 0

a² = b²

Hence, τmax = b/a² + b² = \left| a \right|/2a²

= 1/ 2\left| a \right|

Thus, τmax = 1/2\left| a \right|

Learn more about Torsion:
brainly.com/question/7599357
#SPJ4

Full Question:

Show That The Torsion Of The Helix

r(T) = (A Cos t)Ii + (A Sin T) J + Btk, A, B ≥ 0

Is τ = B/(A2 + B2).

What Is The Largest Value τ can have for a given value of a?

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