2008 AP Physics C物理C—Mechanics力学真题系列之Practice Exam简答题免费下载

历年AP Physics物理学系列

真题与答案下载

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2008 AP Physics C Mechanics Practice Exam Free-Response Questions Free Download

2008 AP 物理C力学模考简答题部分免费下载

此套题仅 p II含有简答题，

共计时45分钟，共3题

占总分50%

每道大题可能含有不同数量的小题

可以使用计算器

部分真题预览：

1）A chunk of clay of mass 0.20 kg is thrown from the ground with an initial speed of 12 m/s at an angle of 30° with the horizontal, as shown above. At the top of its trajectory, the clay strikes a small block of mass 2.3 kg suspended from a 3.0 m long string. The clay sticks to the block, which then swings freely. Neglect air resistance.

1. Calculate the horizontal distance D between the launching point of the clay and a point on the floor directly below the initial position of the block.
2. Calculate the speed of the block-clay system immediately after the collision with the clay.
3. Calculate the angle q through which the block-clay system will rise before coming momentarily to rest.
4. Calculate the time between when the block is struck and when it first returns to its original position.
5. The procedure is repeated with a chunk of clay of greater mass. Indicate whether the new angle q will be greater than, less than, or the same as that determined in (c).
   ___ Greater ___ Less ___ The same
   Justify your answer.