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22.如附國所示,一輛小滑車在水平的軌道上行駛, 車上載有一顆小球,與滑車一起沿著直線等速度 前進。到達軌道分岔處時,若小滑車不轉彎,在 直線軌道上減速前進,則滅速時觀察者由軌道上方俯視,觀察到球的運
問題詳情
22.如附國所示,一輛小滑車在水平的軌道上行駛, 車上載有一顆小球,與滑車一起沿著直線等速度 前進。到達軌道分岔處時,若小滑車不轉彎,在 直線軌道上減速前進,則滅速時觀察者由軌道上方俯視,觀察到球的運動方向將最接近何者?
(A)A
(B)B
(C)C
(D)静止
【題組】23.承22題,若觀察者在車上,則看見球將朝車子的何方移動?(球與滑車之間的摩擦力可忽略不計)
(A)左方
(B)右方
(C)前方
(D)後方
參考答案
答案:C
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