英语翻译forces of 5N,2N and 12N,all lying in the same plane,act on an object.the 5N and 2N forces lie on opposite sides of the 12N force at angles of 40° and 20°,respectively.find the magnitude and direction of the resultant.
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英语翻译forces of 5N,2N and 12N,all lying in the same plane,act on an object.the 5N and 2N forces lie on opposite sides of the 12N force at angles of 40° and 20°,respectively.find the magnitude and direction of the resultant.
英语翻译
forces of 5N,2N and 12N,all lying in the same plane,act on an object.the 5N and 2N forces lie on opposite sides of the 12N force at angles of 40° and 20°,respectively.find the magnitude and direction of the resultant.
英语翻译forces of 5N,2N and 12N,all lying in the same plane,act on an object.the 5N and 2N forces lie on opposite sides of the 12N force at angles of 40° and 20°,respectively.find the magnitude and direction of the resultant.
5N,2N和12N的力在同一平面上同时作用于一物体,5N和2N的力位于12N力的两侧分别与12N力的夹角为40度和20度,求合力的方向和大小