Categories > Mechanical Properties of Solids > Young’s Modulus > A rubber cord catapult has cross-sectional area $25m{{m}^{2}}$and initial length of rubber cord is $10cm.$ It is stretched to $5\,cm.$ and then released to project a missile of mass $5gm.$ Taking ${{Y}_{rubber}}=5\times {{10}^{8}}N/{{m}^{2}}$ velocity of projected missile is

Mechanical Properties of Solids

Question: A rubber cord catapult has cross-sectional area $25m{{m}^{2}}$and initial length of rubber cord is $10cm.$ It is stretched to $5\,cm.$ and then released to project a missile of mass $5gm.$ Taking ${{Y}_{rubber}}=5\times {{10}^{8}}N/{{m}^{2}}$ velocity of projected missile is


1) $20\,m{{s}^{-1}}$
2) $100\,m{{s}^{-1}}$
3) $250\,m{{s}^{-1}}$
4) $200\,m{{s}^{-1}}$
Solution: Explanation: No Explanation
Young’s Modulus Breaking Stress

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