試卷名稱:114年 - 114 國立中興大學_學士後醫學系招生考試_學士後醫學系:物理#126484
年份:114年
科目:學士後西醫-物理
6.An elastic cord used in bungee jumping is normally 10 m long and has spring constant k = 250 N/m. At the lowest point in a jump, the cord length has doubled. How much work has been done on the cord?
(A) 2.5 kJ
(B) 12.5 kJ
(C) 25 kJ
(D) 125 kJ
(E) 250 kJ