# A thin-walled tube with external radius of $100 \mathrm{~mm}$ and wall thickness of $2 \mathrm{~mm}$, is fixed at one end. It is subjected to a compressive force of $1 \mathrm{~N}$ acting at a point on the circumference parallel to its length. The maximum normal stress (in $\mathrm{kPa}$ ) experienced by the structure is ________________(accurate to two decimal places).

## Question ID - 155543 :- A thin-walled tube with external radius of $100 \mathrm{~mm}$ and wall thickness of $2 \mathrm{~mm}$, is fixed at one end. It is subjected to a compressive force of $1 \mathrm{~N}$ acting at a point on the circumference parallel to its length. The maximum normal stress (in $\mathrm{kPa}$ ) experienced by the structure is ________________(accurate to two decimal places).

3537

Answer Key : (-2.50 to -2.20) -

-2.50 to -2.20

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A $1 \mathrm{~m}$ long massless cantilever beam oscillates at $2 \mathrm{~Hz}$, while a $60 \mathrm{~kg}$ mass is attached at the tip of it. The flexural rigidity of the beam (in $\mathrm{kN}-\mathrm{m}^{2}$ ) is__________________(accurate to two decimal places).