本题目来源于试卷: Physics Unit3: Kiematics Motion in Two Dimension & Vectors，类别为 国际高中通用物理
[问答题]
Vector A is 5.5 cm long and points adc(*t m9ay. splongl;mgt8 i ,/zzh pql).y the x axis. Vector B is 7.5 cm long and points at +30e to the neghm ly8q; /zl,g.)zptiative x axis.
(a) Determine the x and y components of Vector A .
(b) Determine the x and y components of Vector B.
(c) Determine the sum of these two vectors in terms of components.
(d) Determine the sum of these two vectors in terms of magnitude and direction.
参考答案:
(a) $A_x = 5.5 \; cm, A_y = \; 0$
(b) $B_x = -6.5 \; cm, B_y = 3.8 \; cm$
(c) $R_x = -1.0 \; cm, R_y = 3.8 \; cm$
(d) $3.9 \; cm$ at $75^{\circ}$ above -x axis
本题详细解析:
暂无
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