Question

The potential energy, P, in a spring is represented using the formula P = P equals StartFraction one-half EndFraction k x squared.kx2. Lupe uses an equivalent equation, which is solved for k, to determine the answers to her homework.

Answer 1

C

Explanation:

Answer 2

`k=(2P)/(x^(2))`

Explanation:

The question is

Which equation should she use?

we have the formula

`P=(1)/(2)kx^(2)`

Solve for k

That means ----> isolate the variable k

Multiply by 2 both sides

`2P=kx^(2)`

Divide by x^2 both sides

`(2P)/(x^(2))=k`

Rewrite

`k=(2P)/(x^(2))`