فيزياء: أي استفسار أول سؤال

[miss-rahaf]

سؤال اخر اتمني منكـ التوضيح فكرته او ذكر القانون المستخدم وانا راح احله

A vector has a magnitude of 12. When its tail is at the origin it lies between the positive x
axis and the negative y axis and makes an angle of 30◦ with the x axis. Its y component is:
A. 6/√3
B. −6√3
C. 6
D. −6
E. 12
ans: D