University Physics Question?

Question

An archer pulls her bow string back .324 m by exerting a force that increases uniformly from zero to 225 n. What is the equivalent spring constant of the bow? Answer in units of n/m.

b.) How much work is done in pulling the bow? Answer in units of J.

Please show work/explanation of how u arrived at your answer.

Answer 1

225/.324 = 694.4 N/m

(1/2)*694.4*.324² = 36.4 J

Doug