A uniform rod of length L and density `rho` is being pulled along a smooth floor with a horizontal acceleration `alpha` (see Fig.) The magnitude of the stress at the transverse cross-section through the mid-point of the rod is……..

A uniform rod of length L and density `rho` is being pulled along a sm

1.	A uniform rod of length L and density `rho` is being pulled along a smooth floor with a horizontal acceleration `alpha` (see Fig.) The magnitude of the stress at the transverse cross-section through the mid-point of the rod is……..
Answer» Correct Answer - A::B Let A be the area of cross-section of the rod. Consider the back half portion of the rod. Mass of half portion of the rod `=(rhoAL)/(2)` The force responsible for its acceleration is `f=(rhoAL)/(2)xxa` `:.` Stress `=f/A=(rhoLalpha)/(2)`

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A uniform rod of length L and density `rho` is being pulled along a smooth floor with a horizontal acceleration `alpha` (see Fig.) The magnitude of the stress at the transverse cross-section through the mid-point of the rod is……..

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