Kelvi

When a block of mass $M$ is suspended by a long wire of length $L$ , the length of the wire becomes $(L + l).$ The elastic potential energy stored in the extended wire is:

medium

Mechanical Properties of Solids

2019

physics

Mgl

MgL

$\frac{1}{2} Mgl$

$\frac{1}{2} MgL$

Explanation

To solve this problem, we need to determine the elastic potential energy stored in the wire when it is extended. $\\$ Given: $\\$ • Mass of the block $M \\$ • Original length of the wire $L \\$ • Extended length of the wire $(L + l) \\$

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When a block of mass M M M is suspended by a long wire of length L L L, the length of the wire becomes (L+l). (L + l). (L+l). The elastic potential energy stored in the extended wire is:

Explanation

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When a block of mass $M$ is suspended by a long wire of length $L$ , the length of the wire becomes $(L + l).$ The elastic potential energy stored in the extended wire is: