如图所示,飞船从圆轨道l变轨至圆轨道2,轨道2的半径是轨道l半径的3倍。若飞船在两轨道上都做匀速圆周运动,则飞船在轨道2上运行和在轨道1上运行相比()

<img src='https://img2.soutiyun.com/shangxueba/ask/17163001-17166000/17165975/15180e006d35e13c71de77b871200a13.jpg' /> A.线速度变为原来的3倍 B.向心加速度变为原来的<img src='https://img2.soutiyun.com/shangxueba/ask/17163001-17166000/17165975/c9021ba248e6e56b24b03002d9e8b2ff.jpg' /> C.动能变为原来的<img src='https://img2.soutiyun.com/shangxueba/ask/17163001-17166000/17165975/10d45c24d757ed44f2a5a5b8db874a48.jpg' /> D.运行周期变为原来的3倍

时间:2023-09-03 16:23:27

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