The length of an elastic wire is x under a tension of 5 N. Its length is y when the tension is 7 N. If the tension becomes 9 N then the length of the wire will be (a) 2у - х (b) 7x - 5y (c) 7x + 5y (c) 2y + x
The length of an elastic wire is x under a tension of 5 N. Its length is y when the tension is 7 N. If the tension becomes 9 N then the length of the wire will be (a) 2у - х (b) 7x - 5y (c) 7x + 5y (c) 2y + x
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Transcribed Image Text:The length of an elastic wire is x under a
tension of 5 N. Its length is y when the tension
is 7 N. If the tension becomes 9 N then the
length of the wire will be
7x - 5у
(a)
2у — х
(b)
(c)
7x + 5y
(c)
2y + x
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