- #1

Nerdlight

- 3

- 0

Really stumped thanks for any help

m

_{f}=kx

_{f}

^{3}

length change by 15.8%

x

_{i}+.158x

_{i}=x

_{f}

x

_{f}=1.158x

_{i}

m

_{f}=k(1.158x)

^{3}

m

_{f}=1.55kx

^{3}

I couldn't get the right answer because at this point, my book shows kx

^{3}turning into m

_{i}and continuing the problem from there. Why?

kx

^{3}=m

_{i}

m

_{f}=1.55m

_{i}

m

_{i}=m

_{f}/1.55