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Question 11

A robotic actuator uses a high-tensile alloy tendon P of length $L$ and circular cross-section of diameter $d$ . Under a design tension $T$ , tendon P undergoes an elastic extension $e$ .

Another tendon Q, manufactured from the same alloy, is subjected to the same tension $T$ .

Which combination of length and diameter for tendon Q will result in an elastic extension of $0.75 e$ ?

Length of Q: $3 L$ , Diameter of Q: $2 d$

Length of Q: $1.5 L$ , Diameter of Q: $2 d$

Length of Q: $3 L$ , Diameter of Q: $4 d$

Length of Q: $6 L$ , Diameter of Q: $2 d$

Materials Questions

A Level
Physics
Materials

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Physics AQA
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