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A load suspended by a massless spring produces an extension of x cm in equilibrium. When it is cut into two unequal parts, the same load produces an extension of 7.5 cm when suspended by the larger part of length 60 cm. When it is suspended by the smaller part, the extension is 5.0 cm. Then

a)

b)

c)

The length of the  original spring is 90 cm

d)

The length of the original spring is 80 cm



Question ID - 55952 | SaraNextGen Top Answer

A load suspended by a massless spring produces an extension of x cm in equilibrium. When it is cut into two unequal parts, the same load produces an extension of 7.5 cm when suspended by the larger part of length 60 cm. When it is suspended by the smaller part, the extension is 5.0 cm. Then

a)

b)

c)

The length of the  original spring is 90 cm

d)

The length of the original spring is 80 cm

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

Assume original length of spring  =

g =

 according to question

And  mg =

And 

127 votes


127