Câu hỏi của nick mới

Question

mn giúp e vs ạ, e cảm ơn trc ạ undefined

nthv_. · Accepted Answer

Bài 1:

$54\left(\dfrac{km}{h}\right)=15\left(\dfrac{m}{s}\right);9\left(\dfrac{m}{s}\right)=32,4\left(\dfrac{km}{h}\right)$

Baì 2:

$t'=s':v'=5:\left(5.3,6\right)=\dfrac{5}{18}h$

$\Rightarrow v_{tb}=\dfrac{s'+s''}{t'+t''}=\dfrac{5+3,8}{\dfrac{5}{18}+\left(\dfrac{15}{60}\right)}\simeq16,67\left(\dfrac{km}{h}\right)$

Câu trả lời:

Bài 1:

$54\left(\dfrac{km}{h}\right)=15\left(\dfrac{m}{s}\right);9\left(\dfrac{m}{s}\right)=32,4\left(\dfrac{km}{h}\right)$

Baì 2:

$t'=s':v'=5:\left(5.3,6\right)=\dfrac{5}{18}h$

$\Rightarrow v_{tb}=\dfrac{s'+s''}{t'+t''}=\dfrac{5+3,8}{\dfrac{5}{18}+\left(\dfrac{15}{60}\right)}\simeq16,67\left(\dfrac{km}{h}\right)$

Lấp La Lấp Lánh · Answer

Nhường e cái lý 8 với ạ :((

Câu trả lời:

Nhường e cái lý 8 với ạ :((