英语翻译Atrain travels in uniform motion along a straight level railway.There is a ball resting on a horizonatal tabletop in a carriage.Will the passengers in the carriage see the ball moving,when the train is accelerated suddenly?What direction
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英语翻译Atrain travels in uniform motion along a straight level railway.There is a ball resting on a horizonatal tabletop in a carriage.Will the passengers in the carriage see the ball moving,when the train is accelerated suddenly?What direction
英语翻译
Atrain travels in uniform motion along a straight level railway.There is a ball resting on a horizonatal tabletop in a carriage.Will the passengers in the carriage see the ball moving,when the train is accelerated suddenly?What direction will the ball move in?What will happen if the train slows doun suddenly?
英语翻译Atrain travels in uniform motion along a straight level railway.There is a ball resting on a horizonatal tabletop in a carriage.Will the passengers in the carriage see the ball moving,when the train is accelerated suddenly?What direction
一列火车在一段水平直轨上匀速运动.车厢内有一水平面,上有一球.当列车突然加速时,车厢内乘客能否看到球在运动?球沿什么方向运动?如果列车突然减速呢?
Atrain旅行中沿直线匀速运动水平railway.There是一个球上,在一carriage.Will horizonatal桌上休息,马车里的乘客看到球移动,当火车突然加速什么方向移动的球?会发生什么事,如果列车突然减速doun?
一列火车匀速地行驶在一条笔直的铁轨上。在一节车厢的桌面上放着一只圆球。当列车突然加速时,车厢里的乘客会注意到球在移动吗?球会向哪个方向移动?而当火车突然减速时又会发生什么呢?
你妈扳机s-----------b
这么难的题老子不会