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Mathematics 19 Online
OpenStudy (anonymous):

A force of 50 pounds stretches a spring 3 inches. (a) How far will a force of 20 pounds stretch the spring? (b) What force is required to stretch the spring 1.5 inches?

OpenStudy (caozeyuan):

Hooke's law says that F=kx

OpenStudy (anonymous):

So what would f, k, and x represent?

OpenStudy (caozeyuan):

force, hooke constant, and distance

OpenStudy (caozeyuan):

we can use a modified form of hooke law: F1/F2=x1/x2

OpenStudy (caozeyuan):

F1=50,F2=20,x1=3, can you solve for x2?

OpenStudy (anonymous):

Would x2=1.19?

OpenStudy (caozeyuan):

good!

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