如图所示小球p在a点从静止开始沿光�的斜面ab运动到b点所用的时间为t1在a点以一定的初速度水平�右抛出恰好落在b点所用时间为t2在a Template




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tomski如图所示小球p在a点从静止开始沿光�的斜面ab运动到b点所用的时间为t1在a点以一定的初速度水平�右抛出恰好落在b点所用时间为t2在a coloring