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The wires A and B shown in Fig. are made...

The wires `A` and `B` shown in Fig. are made of the same material and have radii `r_(A)` and `r_(B)`, respectively. The block between them has a mass `m`. When the force `F` is `mg//3`, one of the wires breaks. Then

A

A breaks if `r_(A)=r_(B)`

B

A breaks if `r_(A) lt r_(B)`

C

Either A or B may break if `r_(A)=2r_(B)`

D

The length of A and B must be known to predict which wire will break.

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A, B, C
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