2009 AP Calculus BC Free-Response Questions Free Download
2009 AP 微積分 BC 簡答題部分免費下載
此套Section II試卷共分兩個部分組成
Part A計時30分鐘,共2題
Part B計時1小時,共4題
每道大題含有不同數量的小題
Part A可使用繪圖計算器
Part B不可使用任何計算器
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部分真題預覽:
Section II,Part A,請使用Graphing Calculator:
1)Caren rides her bicycle along a straight road from home to school, starting at home at time t=0 minutes and arriving at school at time t=12 minutes. During the time interval 0 ≤t?≤12 minutes, her velocity v(t), in miles per minute, is modeled by the piecewise-linear function whose graph is shown above.
Find the acceleration of Caren’s bicycle at time t=7.5? minutes. Indicate units of measure.
Using correct units, explain the meaning of? in terms of Caren’s trip. Find the value of?
Shortly after leaving home, Caren realizes she left her calculus homework at home, and she returns to get it. At what time does she turn around to go back home? Give a reason for your answer.
Larry also rides his bicycle along a straight road from home to school in 12 minutes. His velocity is modeled by the function w given by , where w(t) is in miles per minute for 0 ≤t≤12 minutes.Who lives closer to school:? Caren or Larry? Show the work that leads to your answer.
Section II,Part B,不可使用任何計算器:
3)A diver leaps from the edge of a diving platform into a pool below. The figure above shows the initial position of the diver and her position at a later time. At time t seconds after she leaps, the horizontal distance from the front edge of the platform to the diver’s shoulders is given by x(t), and the vertical distance from the water surface to her shoulders is given by y(t), where x(t) and y(t)?are measured in meters. Suppose that the diver’s shoulders are 11.4 meters above the water when she makes her leap and that
?for 0 ≤?t?≤ A,?where A is the time that the diver’s shoulders enter the water.
Find the maximum vertical distance from the water surface to the diver’s shoulders.
Find A, the time that the diver’s shoulders enter the water.
Find the total distance traveled by the diver’s shoulders from the time she leaps from the platform until the time her shoulders enter the water.
Find the angle?θ,0 <θ< π/2,? between the path of the diver and the water at the instant the diver’s?shoulders enter the water.