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WASSCE
A body of mass 11kg is suspended from a ceiling by an aluminium wire of length 2m and diameter 2mm. Calculate the elastic energy stored in the wire.
[Young modulus of aluminium is 7.0 x 1010 Nm-2, g = 10ms-2, x = 3.14 ]
[Young modulus of aluminium is 7.0 x 1010 Nm-2, g = 10ms-2, x = 3.14 ]
A.
1.1 x 10-1 J
B.
5.5 x 10-2 J
C.
1.1 x 10-4 J
D.
5.5 x 10-5 J
Answer: B
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