問題詳情
1.Hie space shullle launches an 800-kg satellite by ejeciing il from (he cargo bay as shown in Fig. 1. The ejection mechanism is activated and is in coiilacl with the satellite for 3s lo give it a velocity oi 0.4 m/s in the z-direclion relative to Hie sluilile. The mass of I he shullle is l00Mg. Delerinine the component of velocity vf of the shullle in llie minus z-directioa resulting from the ejeclion. Also find ihe lime average Fuv oi lhe ejeciioa force. (25%)
參考答案
答案：B
難度：適中0.554241
統計：A(63),B(281),C(8),D(97),E(0)
用户評論
【用戶】樂樂(107上岸)
【年級】大二上
【評論內容】挺胸往前倒身體更容易接觸到地面吧?為什麼跟我做的護身倒法有差距?