Câu hỏi của Phùng Thị Ngọc Hân

Question

Câu 2: Nêu các tác dụng của ròng rọc, và vận dụng tính lực trong hệ palang cụ thể.

Khánh Nguyễn · Accepted Answer

có 2 loại ròng rọc ròng rọc cố định giúp làm thay đổi   của lực kéo so với khi kéo trực tiếpròng rọc động giúp làm lực kéo vật lên nhỏ hưn tronhgj lượng của vậtdùng palăng cho phép giảm giảm cường độ lực kéoCâu trả lời:  có 2 loại ròng rọc ròng rọc cố định giúp làm thay đổi   của lực kéo so với khi kéo trực tiếpròng rọc động giúp làm lực kéo vật lên nhỏ hưn tronhgj lượng của vậtdùng palăng cho phép giảm giảm cường độ lực kéo

kimetsu no yaiba · Answer

mày ko thoát dược đâu con trai to be 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mà thôiCâu trả lời: mày ko thoát dược đâu con trai to be 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