A unknown weight falls through 1 cm on a collar rigidly attached to th – McqOptions

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1.	A unknown weight falls through 1 cm on a collar rigidly attached to the lower end of a vartical bar 3 cm long and 6 cm2 in section. If the maximum instantaneous extension is 2 mm the value of stress would be
A.	1333 kg/cm2
B.	1000 kg/cm2
C.	667 kg/cm2
D.	1500 kg/cm2
E.	500 kg/cm2
Answer» B.

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