denisse7 denisse7

25-04-2018
Mathematics

contestada

According to Hooke’s, the force needed to stretch a spring is directly proportional to the amount the spring is stretched. If fifty pounds of force stretches five inches, how much will the spring be stretched by a force of 130 pounds?

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mkryukova19 mkryukova19

25-04-2018

We need to write a proportion:
Length 1/ Force 1=Length 2/ Force 2
5 in. /50 lb =x in/130 lb
x=5*130/50 =13 in.

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