פתרונות פרקטיקות-3- דינמיקה שני גופים

מהחוק השלישי של ניוטון, הכוח הפועל על החוט שווה לכוח שהחוט מפעיל ולכן ניתן לומר שמתיחות החוט היא M₁g.

T  =  M₁g

על גוף 2 פועלים 4 כוחות: כוח המתיחות T, כוח החיכוך f_k, כוח כובד W₂ וכוח הנורמל N.

נערוך תרשים כוחות על גוף 2:

נכתוב את משוואות התנועה עבור גוף 2:

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