[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fVZnAema7gfAzYBHe_vucs7Vwr7mz1BSA8ZvhaIyilEw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":14,"related":15,"source":25,"type":68},[],"2026-05-28 14:16:09",390547926,[8,9],"正确","错误",{"courseId":11,"courseImg":12,"courseName":13},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","在相对运动中,参考系的选择不同,物体的运动描述可能不同,但运动的本质不变",[16,27,36,45,54,63,69,72,77,82],{"answer":17,"createTime":5,"id":18,"options":19,"question":24,"source":25,"type":26},[],390547920,[20,21,22,23],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5a36c6574328bc13d8bff87879ce5d06.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9e45b4b518e2b760b24a4bb4c575bc4c.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0352d07d38c55a46d43b5e17612251a2.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5f25fde97c62b9ea8a2167739bc29598.png\">","在相对运动中,物体A相对于物体B的速度\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb6cb9f0ffb21a78be3207118657b4f43.png\">与物体B相对于物体A的速度\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff6131149dc0dc2db751e1423d2518501.png\">的关系是","v1",0,{"answer":28,"createTime":5,"id":29,"options":30,"question":35,"source":25,"type":26},[],390547921,[31,32,33,34],"竖直向下","斜向左下方","斜向右下方","水平向左","地面观察者看到雨滴竖直下落,而在匀速向右行驶的汽车中的乘客看到雨滴的运动方向是",{"answer":37,"createTime":5,"id":38,"options":39,"question":44,"source":25,"type":26},[],390547922,[40,41,42,43],"1m\u002Fs","3m\u002Fs","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc61000a258c44efeb19c7efec6aeb304.png\">m\u002Fs","5m\u002Fs","某河流自西向东流,流速为2m\u002Fs.一艘小船在静水中的速度为3m\u002Fs,若小船船头正对河岸(向北)行驶,则小船相对于地面的速度大小为",{"answer":46,"createTime":5,"id":47,"options":48,"question":53,"source":25,"type":26},[],390547923,[49,50,51,52],"物体相对于参考系的速度","参考系相对于物体的速度","动参考系相对于静参考系的速度","静参考系相对于动参考系的速度","在相对运动的速度变换公式(vec{v}_{绝对} = vec{v}_{相对} + vec{v}_{牵连})中,"牵连速度"指的是",{"answer":55,"createTime":5,"id":56,"options":57,"question":62,"source":25,"type":26},[],390547924,[58,59,60,61],"两速度大小之和","两速度大小之差","零","无法确定","当两物体以相同的速度同向运动时,它们之间的相对速度为",{"answer":64,"createTime":5,"id":65,"options":66,"question":67,"source":25,"type":68},[],390547925,[8,9],"相对速度的大小一定等于两物体绝对速度大小之差",3,{"answer":70,"createTime":5,"id":6,"options":71,"question":14,"source":25,"type":68},[],[8,9],{"answer":73,"createTime":5,"id":74,"options":75,"question":76,"source":25,"type":68},[],390547927,[8,9],"若汽车以速度v向东行驶,行人以速度u向西行走,则行人相对于汽车的速度大小为v+u",{"answer":78,"createTime":5,"id":79,"options":80,"question":81,"source":25,"type":68},[],390547928,[8,9],"牵连速度是指物体相对于动参考系的速度",{"answer":83,"createTime":5,"id":84,"options":85,"question":86,"source":25,"type":68},[],390547929,[8,9],"当两物体相对静止时,它们的相对速度为零"]