gc physics textbook chapter 6 problems (id: b925d2da9)

本题目来源于试卷: gc physics textbook chapter 6 problems，类别为 IB物理学

[填空题]
A 6.0-kg block is pushxfo c,1+b (9a6jjgkea ed 8.0 m up as: - q+u yems1*mjfkp: p:j/td d.5vjm rough 37 $^{\circ} $ inclined plane by a horizontal force of 75 N. If the initial speed of the block is 2.2m/s up the plane and a constant kinetic friction force of 25 N opposes the motion, calculate
(a) the initial kinetic energy of the block; $\approx$    J
(b) the work done by the 75-N force; $\approx$    J
(c) the work done by the friction force;    J
(d) the work done by gravity;$\approx$    J
(e) the work done by the normal force;    J
(f) the final kinetic energy of the block.$\approx$    J

参考答案:
空格1: 15±2%  空格2: 4800±2%  空格3: -200±2%  空格4: -280±2%  空格5: 0±2%  空格6: 11±2% 


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