A solid metal bat of uniform diameter D and length L is hung vertical – McqOptions

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1.	A solid metal bat of uniform diameter D and length L is hung vertically from a ceiling. If the density of the material of the bar is 1 and the modulus of elasticity is E, then the total elongation of the bar due to its own weight will be ____________
A.	L/2E
B.	L2/2E
C.	E/2L
D.	E/2L2
Answer» C. E/2L

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