A 5 kg rod of square cross section 5 cm on a side and 1 m long is pulled along a smooth…
Physics · JEE Advanced · NTA Exams — Properties of Solids and Liquids
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 of the rod is 5 × 109 N/m2)
2 m/s2. Determine the elongation in the rod. (Young’s modulus of the material of the rod is 5 × 109 N/m2)
- Zero, as for elongation to be there, equal and opposite force must act on the rod
- Non-zero but can’t be determine from the given situation
- 0.4 µm
- 16 µm
Answer
(D) 16 µ m
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