Tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 10 S\u1ef1 r\u01a1i t\u1ef1 do.docx - Tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 10 S\u1ef1 r\u01a1i t\u1ef1 do(ph\u1ea7n 2 C\u00e2u 11 M\u00f4t v\u00e2t \u0111\u01b0\u01a1c tha t\u01b0 do v\u01a1i

Trắc nghiệm Vật Lí 10 Sự rơi tự do.docx -...

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Trắc nghiệm Vật Lí 10 Sự rơi tự do (phần 2) Câu 11: M t v t đươc tha tư do vơi v n tôc ban đâu băng 0 va trong giây cuôi cung no đi đươc nưa ô â â đoan đương rơi. Lây g = 10 m/s2. Thơi gian rơi cua v t la â A. 0,6 s. B. 3,4 s. C. 1,6 s. D. 5 s. Câu 12: M t v t đươc tha rơi tư do tư m t đ cao so vơi m t đât thi thơi gian rơi la 5 s. Nêu v t nay ô â ô ô ă â đươc tha rơi tư do tư cung m t đ cao nhưng ơ M t Trăng (co gia tôc rơi tư do la 1,7 m/s2) thi thơi gian ô ô ă rơi sẽ la A. 12 s. B. 8 s. C. 9 s. D. 15,5 s. Câu 13: Hai viên bi đươc tha rơi tư do tư cung m t đ cao, nhưng bi A rơi trươc bi B m t khoang thơi ô ô ô gian Δt = 0,5 s. Ngay sau khi viên bi B rơi xuông va trươc khi bi A cham đât thi A. khoang cách giữa hai bi tăng lên. B. khoang cách giữa hai bi giam đi. C. khoang cách giữa hai bi không đổi. D. ban đâu khoang cách giữa hai bi tăng lên, sau đo giam đi.
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