Vật chuyển động trên đoạn đường AB chịu tác dụng của lực F1 và tăng vận tốc từ 0 đến 10 m/s trong thời gian t. Trên đoạn đường BC tiếp theo vật chịu tác dụng của lực F2 và tăng vận tốc đến 15 m/s cũng trong thời gian t. Tỉ số bằng:

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Một số câu hỏi khác có thể bạn quan tâm.

• Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:   

• Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:  

• Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:

   

• Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:

   

• Mark the letter A, B, C or D on your answer sheet to indicate the word whose the underlined part differs from the other three in pronunciation in each of the following question:    

• Mark the letter A, B, C or D on your answer sheet to indicate the word whose the underlined part differs from the other three in pronunciation in each of the following question:    

• Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:

• Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:

• Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part is pronounced differently from that of the rest in each of the following questions:  

• Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part is pronounced differently from that of the rest in each of the following questions: