試卷名稱:111年 - 111 高雄醫學大學_學士後醫學系招生考試:物理及化學#109923
年份:111年
科目:學士後西醫物理及化學
35. A block of mass 2 kg on a table is pushed by a force of 20 N directed with an angle of 30o
downward from the horizontal as shown in the figure. The kinetic frictional coefficient is 0.2.
What is the work done by the frictional force after traveling 10 m long? (Gravitational acceleration
g = 10 m/s2)
(A) 10 J
(B) 30 J
(C) 40 J
(D) 50 J
(E) 60 J