An object starts moving from rest with a uniform acceleration.Which of the following graphs concerning the motion of the object is/are correct?
(s=displcement,v=velocity)
Why this is NOT correct?
http://img184.imageshack.us/img184/5926/63773883gh5.jpg
2007-02-22 13:34:41 · 1 個解答 · 發問者 2003 2 in 科學 ➔ 其他：科學
若利用等加速直線運動公式
v2 = u2 + 2as
若初速為零，公式變為
v2 = 2as
它是二次曲線，所以不是直線圖
2007-02-22 13:48:15 · answer #1 · answered by ? 7 · 0⤊ 0⤋