At last, the paper analyzes the kinematics of the Ice-skater Robot when it turns and skates forwards respectively.
最后，以溜冰机器人为例分析了其转弯和直线滑行时的运动学问题。
2
A typical exam question went something like this: an ice-skater weighs 150 pounds and is doing figure-eights on ice an inch thick.
举个典型的例子，有个问题是这样的：一个溜冰者，体重150磅，在一英寸厚的冰面上划“8”字形溜冰。
3
Since that pulls mass closer to the planet's spin axis, it causes the planet to rotate faster - just as an iceskater spins faster when she pulls her arms towards her body.