Spring A has a spring constant of 100 N/m and spring B has a spring constant of 200 N/m, and both have the same displacement of 0.20 m. The spring potential energy of spring A is _____ that of spring B.

Respuesta :

Answer:

Explanation:

Given

Spring constant of spring A is [tex]k_A=100\ N/m[/tex]

Spring constant of spring B is [tex]k_B=200\ N/m[/tex]

If displacement in both the springs is [tex]x=0.2\ m[/tex]

Potential Energy stored in the spring is given by

[tex]U=\frac{1}{2}kx^2[/tex]

where k=spring constant

x=compression or extension

[tex]U_A=\frac{1}{2}\times 100\times (0.2)^2----1[/tex]

[tex]U_B=\frac{1}{2}\times 200\times (0.2)^2----2[/tex]

Divide 1 and 2

[tex]\frac{U_B}{U_A}=\frac{200}{100}=2[/tex]

[tex]U_A=\frac{U_B}{2}[/tex]

So Potential Energy Stored in Spring A is half of Spring B

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