A force of 10lb is required to hold a spring stretched 4 in beyond its natural length. How much work is done in stretching it from its natural length to 6 in. beyond its natural length?

Question

babynini · Answer

So my set up was originally
k(0.04) = 10
but then I realized that 10 was in lb and not in Newtons..so that would give me the wrong answer, right?

babynini · Answer

@Vocaloid :)

babynini · Answer

@tkhunny

tkhunny · Answer

Convert to Newtons?
Is it proportional?
Are you SURE it can go to 6" without breaking?

babynini · Answer

em..I don't know o.0
how should I set this up then? :o