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º®¿¡ ±â´ë ³õÀº »ç´Ù¸®(ladder)¿Í ¹Ù´Ú°úÀÇ ¸¶Âû°è¼ö(friction coefficient)

ÀÛ¼ºÀÚ Uploader : freeboard ÀÛ¼ºÀÏ Upload Date: 2022-05-06º¯°æÀÏ Update Date: 2022-05-06Á¶È¸¼ö View : 580

±×¸²°ú °°ÀÌ ¹«°Ô m (kgf) ÀÎ »ç´Ù¸®¸¦ º®À¸·ÎºÎÅÍ L (m) ¶³¾îÁø À§Ä¡¿¡¼­ ³ôÀÌ H (m) ÀÎ º® ÁöÁ¡¿¡ ±â´ë¾î ³õ¾ÒÀ» ¶§, »ç´Ù¸®°¡ ¹Ì²ô·¯Áö±â ½ÃÀÛÇß´Ù¸é, »ç´Ù¸®¿Í ¹Ù´Ú°úÀÇ ¸¶Âû°è¼ö ¥ì ´Â ´ÙÀ½°ú °°ÀÌ ±¸ÇÒ ¼ö ÀÖ´Ù.
»ç´Ù¸®¿Í º®°úÀÇ ¸¶ÂûÀº ¾ø´Â °ÍÀ¸·Î ÇÑ´Ù.

¹Ù´ÚÁöÁ¡¿¡¼­ ¹ß»ýÇÏ´Â ¼öÁ÷¹æÇ⠹ݷÂÀº

Ry = mg

ÀÌ°í, ¸¶Âû·Â Ff ´Â

Ff = ¥ìmg

°¡ µÈ´Ù.

¹Ù´ÚÁöÁ¡À» Áß½ÉÀ¸·Î ¸ð¸àÆ® ÇÕÀº 0 À̹ǷÎ,

mg(L/2) = RxH

Rx = mgL/(2H)

ÀÌ°í, Rx ´Â ¸¶Âû·Â Ff ¿Í µ¿ÀÏÇϹǷÎ,

mgL/(2H) = ¥ìmg

¥ì = L/(2H)

°¡ µÈ´Ù.


*** Âü°í¹®Çå[References] ***

¥ì = L/(2*H)
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º¯¼ö¸í Variable º¯¼ö°ª Value º¯ ¼ö ¼³ ¸í Description of the variable


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