First slide

Stress and strain

Question

A cable that can support a load w is cut into two equal parts. The maximum load that can be supported by either part is

Easy

A

$\frac{w}{4}$
B

$\frac{w}{2}$
C

w
D

2w

Solution

(Stress)₁ = (Stress)₂
Maximum load does not depend on the length.
$∴$ The maximum load that can be supported by either part is w.

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