試卷名稱:112年 - 112 國立中山大學_學士後醫學系招生考試:物理及化學#113601
年份:112年
科目:學士後西醫物理及化學
41. The force
in the figure will keep the block and the pulleys in equilibrium. The block has mass m. Neglect the mass of pulleys and strings and friction in the system. What is the strength of
?
(A)mg
(B)mg/3
(C)mg/5
(D)mg/7
(E) mg/9