- #1
Serella_Madole
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Homework Statement
[/B]After crossing the patch of soft snow, the skier hits a snowdrift and penetrates a distance 2.1 m into it before coming to a stop. What is the average force exerted on her by the snowdrift as it stops her?
Homework Equations
TE(initial) = TE(final)
The Attempt at a Solution
TEi = TEf
Kei + Pei = Elastic Energy + Kef (Pei = zero)
1/2mv^2 =1/2kx^2
k = mv^2/x^2
k = 14583.3
F=-kx^2
F=64312.353N
This is not correct; the correct answer is 4210N. Apparently you can use the Work Energy Theorem in order to determine this value. I am not sure how though. Please assist in helping me understand. [/B]