Question text
20 A wire of diameter d and length l hangs vertically from a fixed point. The wire is extended by hanging a mass M on its end. The Young modulus of the wire is E. The acceleration of free fall is g. Which equation is used to determine the extension x of the wire? Ml Mgl 4Mgl 4Mgl A x= B x= C x= D x= rdE rd2E rdE rd2E
20 A wire of diameter d and length l hangs vertically from a fixed point. The wire is extended by
hanging a mass M on its end. The Young modulus of the wire is E. The acceleration of free fall
is g.
Which equation is used to determine the extension x of the wire?
Ml Mgl 4Mgl 4Mgl
A x= B x= C x= D x=
rdE rd2E rdE rd2E
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