問題詳情
34. A block of density 800 kg/m3 floats face down in a fluid of density 1200 kg/m3. The block has heightH= 6 cm. If the block is held fully submerged and then released, what is the magnitude of its initialacceleration?
(A) 2.45 m/s2
(B)19.6 m/s2
(C)0m/s2
(D)9.8 m/s2
(E) 4.9 m/s2
參考答案
答案：E
難度：計算中-1
書單：沒有書單，新增