A point mass of 100 kg is dropped onto a massless elastic bar (cross-sectional area = 100 mm², length = 1 m, Young's modulus = 100 GPa) from a height H of 10 mm as shown (Figure is not to scale). If g = 10 m/s², the maximum compression of the elastic bar is ______ mm.

GATE 2018 Mechanical Engineering Q40 — Mechanical Engineering

GATE 2018Set CombinedQ40NATanswer keyexplanation soonhard

Mechanical Engineering · Strength of Materials - Impact Loading

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Drill mode: young's modulus · 10/14

Figure from the original GATE 2018 paper. (IIT Guwahati archive)

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impact loadingelastic barcompressionYoung's modulus