A weight of 240 N is dropped on to a close-coiled helical sp

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ESE 2018 Prelims Paper I
Engineering aptitude
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Engineering aptitude

31

M: +2.00/-0.66

A weight of 240 N is dropped on to a close-coiled helical spring made up of 18 mm spring steel wire. The spring consists of 22 coils wound to a diameter of 180 mm. If the instantaneous compression is 120 mm, what is the height of drop of the weight, given

[ESE 2018 Prelims Paper I]

A 450 mm

B 300 mm

C 250 mm

D 150 mm