Một viên đạn được bắn lên theo phương thẳng đứng với vận tốc ban đầu . Tính quãng đường viên đạn đi được từ lúc bắn lên cho tới khi chạm đất, biết gia tốc trọng trường là .

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  Why __________________ my pen while I was out? You ______________________ it.
   

• Choose the best answer for the following sentence:

  You _____________________ me why you're called Peter when your name is John.
   

• Choose the best answer for the following sentence:

  Her father __________________ when she was a small girl.
   

• Choose the best answer for the following sentence:

  They _________________ since they ____________________ school.
   

• Choose the best answer for the following sentence:

  The rain ____________________. Come out, I want to speak to you.
   

• Choose the best answer for the following sentence:

  '' __________________ your tennis racket with you?'' ''Yes, I am going to show you 
  how much I __________________ since last summer. I ________________ tennis lessons now.
  Now it ____________________ for you to judge if I __________________ any progress.''
   

• Choose the best answer for the following sentence:

  My girlfriend arrived after I ________________ for her about half an hour.
   

• Choose the best answer for the following sentence:

  Did she say that she ___________________ him tomorrow?
   

• Choose the best answer for the following sentence:

  _______________ to rain before you woke up this morning?
   

• Choose the best answer for the following sentence:

   I _________________ in Hanoi before I moved to Ho Chi Minh City.