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GATE Mechanical 2023 | Question: 6

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The effective stiffness of a cantilever beam of length $L$ and flexural rigidity $E I$ subjected to a transverse tip load $\mathrm{W}$ is

  1. $\frac{3 E I}{L^{3}}$
  2. $\frac{2 E I}{L^{3}}$
  3. $\frac{L^{3}}{2 E I}$
  4. $\frac{L^{3}}{3 E I}$
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option a will be correct because stiffness is given by K=W/del

K=3EI/cubic L
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