Question

A weight of 450 g produces an extension of 3.5 cm in a elastic string, find
(a) how much weight is required to produce an extension 1.75 cm.
(b) how much extension will be produced by 9 kg weight.​

Answer 1

EXPLANATION

450/3.5

=128.57142

1 gram = 128.57142

128.57142×1.75

=225 g

1.75cm extension=225

9000÷128.57142

because 9kg means 9,000grams

=70 cm extension

FINAL ANSWER

(a) = 225 grams

(b) = 70 cm extension

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