有速度才能平衡，重量高了速度降

送交者: pgss 于 2012-02-06, 01:38:01:

回答: 歪读！平衡懂吗？由梅子于 2012-02-05, 22:28:22:

conservation of momentum.....so u need to run to cathc the bike speed.

Fall or very hard to balance when the bike stops....this is related to centripetal force....