A 5 kg rod of square cross section 5 cm on a side and 1 m long is pulled along a smooth horizontal surface by a force applied at one end. The rod has a constant acceleration of 2 m/s2. Determine the elongation in the rod. (Young's modulus of the material p f therod is 5 × 103N/m9).
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Zero, as for elongation to be there, equal and opposite forces must act on the rod
Step-by-step explanation:
Since it is pulled on a smooth surface from one end only, thus there wll be no elongation, as force will cause its displacement and not extension.
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