Một vật chuyển động theo quy luật  với t (giây) là khoảng thời gian tính từ lúc vật bắt đầu chuyển động và s (mét) là quãng đường vật đi được trong khoảng thời gian đó. Hỏi trong khoảng thời gian 10 giây, kể từ lúc bắt đầu chuyển động vận tốc lớn nhất của vật đạt được bằng bao nhiêu?        

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  She ___________ notice of his behavior towards her.

• Choose the best answer for the following sentence:

  "_______________ care of that necklace - it’s very valuable.”
  
  

• Choose the best answer for the following sentence:

  Jenny is ______________ on holiday for a week.

• Choose the best answer for the following sentence:

  Sun-Young avoids ________________ underwear at the thrift store.

• Choose the best answer for the following sentence:

  The girls agreed _____________ the cake equally. 

• Find a mistake in the four underlined parts of the sentence and correct it:

  A wedding in a Greek village is really worth to be seen.

• Find a mistake in the four underlined parts of the sentence and correct it:

  I closed the door as quiet as I could.

• Find a mistake in the four underlined parts of the sentence and correct it:

  He started his talk with an explanation on the difference among accent and dialect.

• Choose the word that has the underlined part pronounced differently from the rest: 

  stay                     manage                      may                        play

• Choose the word whose stress is on the second syllable:

  college                 student                   member                       enrich