7. 质量为 长 的均匀细杆可绕其一端 的水平轴转动, 另一端与质量为 的小球固连。系统从水平位置由静止转过 角时, 求系统的角速度动能和力矩所作的功。
Not the question you are looking for? Ask here!
Enter question by text
Enter question by image
Upgrade to Asksia Pro
Join a AskSia's Pro Plan, and get 24/7 AI tutoring for your reviews, assignments, quizzes and exam preps.