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14.如右圖,人以50 kgw的力推車,但車子仍靜止不動,已知此車重800 kgw,則下列敘述何者錯誤? (A) 車子給人的反作用力為50公斤重(B) 車子給地面的作用力為750公斤重(C) 地面給
問題詳情
14.如右圖,人以50 kgw的力推車,但車子仍靜止不動,已知此車重800 kgw,則下列敘述何者
錯誤
?
(A) 車子給人的反作用力為50公斤重
(B) 車子給地面的作用力為750公斤重
(C) 地面給車的反作用力為800公斤重
(D) 車子所受的合力為零
參考答案
答案:B
難度:
簡單
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用户評論
【用戶】
追ig_9sw.ery
【年級】國一上
【評論內容】已知此車重800 kgw,則車子給地面的作用力為800公斤重
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