求解一道AP微積分應(yīng)用題!
求解一道AP微積分應(yīng)用題!
A ball is thrown upward from the top of a building feet tall.The height of the ball is described by the function y(t),=-16t^2+14t+250.where t is in seconds and t=0 corresponds to the moment the ball is thrown.
(1)Determine for which value of t the ball reaches the maximum height and determine this maximum height.
(2)
Determine when the ball reaches the ground.
(3)With what velocity does the ball hit the ground?
A ball is thrown upward from the top of a building feet tall.The height of the ball is described by the function y(t),=-16t^2+14t+250.where t is in seconds and t=0 corresponds to the moment the ball is thrown.
(1)Determine for which value of t the ball reaches the maximum height and determine this maximum height.
(2)
Determine when the ball reaches the ground.
(3)With what velocity does the ball hit the ground?
英語人氣：908 ℃時間：2020-06-28 23:18:59
優(yōu)質(zhì)解答
（1）第一問求t為何值時球達(dá)到最大高度 y'(t)=-32t+14 令其等于0 解得t=7/16 再帶入 y(t),=-16t^2+14t+250 解得最大高度（2）第二問球什么時候落地令y(t),=-16t^2+14t+250=0 解得的t（取正的那個）就是（3）問球落地...
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