Đáp án:
Ta có : V = Vo + a.t
Dựa theo pt trên :
=> Vo = 5, a = 2
Pt chuyển động của vật là :
X = Xo + Vo.t + $\frac{1}{2}$ .a . $t^{2}$
Thế vào :
=> X = Xo + 5.t + $\frac{1}{2}$ . 2 . $t^{2}$
Giải thích các bước giải:
$ v=v_{0}+at$
$⇒v_{0}=5m/s,a=2m/s^{2}$PT chuyển động
$x=x_{0}+v_{0}t+\dfrac{1}{2}at^{2}$
$⇒x=0+5t+\dfrac{1}{2}.2t^{2}=5t+t^{2}$
Viết một bài văn tả về một cơn mưa
vừa nãy gưi nhầm P trong sinh học là j
Tính B=1+3^3+3^4+....+3^2016+3^2019
A.X×(1/4)³=(1/4)⁵ B.3/4÷X+(-1/2)³= 1/8 Tìm X
Viết phương trình điện ly, có bao nhiêu nấc ghi từng đó phương trình. Thanks
Tìm 20 từ láy gợi tả tâm trạng cảm giác của con người hẹp myyyyy
duy nhất 1 bài thôi ạ nhưng mình cần gấp nhe
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Lm cho mik từ câu 21 đến câu 23 thui nha
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