ONE QUESTION, ONE STEP
ZX-0AEFFE198A2025年11月国际B卷 · 第 7 题
2025年11月国际B卷 · 原库模块 2 · Q7 原库参考解析
\( h(t)=-16t^2+b \)
The function h estimates an object's height, in feet, above the ground t seconds after the object is dropped, where b is a constant. The function estimates that the object is 23.04 feet above the ground when it is dropped at \( t=0 \). How many seconds after being dropped does the function estimate the object will hit the ground?
参考答案:
解题思路
容易忽略的一步
