Mn ơi ! Tuy không liên quan nhưng tôi muốn bảo mn cái này

Đây không phải Nguyễn Phương Linh lừa mn

Mà thật là tôi ( chị gái của Nguyễn Phương Linh ) đã mượn tài khoản này và khi nào bạn Linh phẫu thuật xong tôi sẽ trả cho bn ý

Tôi cảm ơn

Chúc mn giáng sinh vui vẻ

Chúc mn tết an khang , thịnh vượng , mạnh khỏe , hạnh phúc , vui vẻ và nhận được nhiều lì xì

Thanks

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Câu 1:      Một con lắc lò xo gồm một lò xo nhẹ có độ cứng 100N/m và vật nhỏ có khối lượng 0,5 kg dao động điều hòa với biên độ 5cm. Động năng của vật tại li độ -3cm là

A.  0,17 J.                  B.  0,08 J.                  C.  0,16 J.                  D.  0,34 J.