高考问答焰尾妖狐和偶像歌手:高手请进。想学习的也请进。
来源：百度文库 编辑：高考问答 时间：2024/05/14 04:04:03
Describe the motion of the following items as pure rotation,pure translation or compleo plane montion?
You can answer the question by the following points:
a. A wind mill .
b. A bicycle(in the vertical plane,not turning).
c. A conventional "double-hung" window.
d. The keys on a computer keyboard .
e. The hand of a clock .
f. A hockey puck on the ice.
g. The pen in the x-y plotter.
h. The print head in a computer printer. A "casement" window.
You'd better choose three points from these,then describe them.
You can answer the question by the following points:
a. A wind mill .
b. A bicycle(in the vertical plane,not turning).
c. A conventional "double-hung" window.
d. The keys on a computer keyboard .
e. The hand of a clock .
f. A hockey puck on the ice.
g. The pen in the x-y plotter.
h. The print head in a computer printer. A "casement" window.
You'd better choose three points from these,then describe them.