物理 - 2026 进行中

科目: 物理
级别: VII
类别: 大学生
测试题目: 英语
问题示例: A 2.0 kg object is lifted vertically through 5.0 m at constant speed. Ignoring air resistance and taking g = 10 m/s², how much work is done by the lifting force? 50 J, 100 J, 150 J, 200 J