送交者: meiyou 于 2016-04-29, 15:47:08:

回答: Anyone can help me this question of physics? Thanks! 由 hopelessless 于 2016-04-29, 15:35:10:

• 如果我问要让bike和bus停下所需的力那个大， 应该是汽车所需的力大， 对不？ (无内容) - hopelessless (0 bytes) 2016-04-29, 16:17:00 (806685)
  • 停下来有个时间因素，定量守恒你也不知道？ (无内容) - meiyou (0 bytes) 2016-04-29, 22:16:10 (806708)
  • 因为汽车的质量大，但是人所需的力汽车小，BIKE大， 是吗？ (无内容) - hopelessless (0 bytes) 2016-04-29, 16:19:43 (806686)
    • this is more specific. Yes, M大惯性大。大屁股一扭起来难停下。 (无内容) - cornbug (0 bytes) 2016-04-29, 16:24:16 (806688)
      • BUT, 问题是问那个先停下， 难道所用的力小就先停下？ (无内容) - hopelessless (0 bytes) 2016-04-29, 16:28:20 (806689)
        • 比如说汽车刹车力大到像是撞墙而摩托刹车力像撞上个肥屁股，你说谁先停。 - cornbug (23 bytes) 2016-04-29, 16:35:28 (806692)
        • 汽车和BIKE使用的力小， 并不等于人用的力小 (无内容) - hopelessless (0 bytes) 2016-04-29, 16:30:46 (806690)
          • Sorry, (say again) the force needed by bike is smaller than that of bus, BUT... - hopelessless (57 bytes) 2016-04-29, 16:35:10 (806691)
            • No. a foot brake is eletrohydraulically augmented. human force is irrelevant. (无内容) - cornbug (0 bytes) 2016-04-29, 16:40:14 (806694)
              • eletrohydraulically augmented brake applies to bus rather than bike. (无内容) - hopelessless (0 bytes) 2016-04-29, 16:48:21 (806695)
                • If it is a peddle bike powered by a kid or a girl, Ha, you know the answer (无内容) - cornbug (0 bytes) 2016-04-29, 16:55:25 (806696)
                  • A bike can be a pedal type or motor type.~~ (无内容) - cornbug (0 bytes) 2016-04-29, 19:02:07 (806701)
                  • A bike can be a pedal type or motor type. (无内容) - cornbug (0 bytes) 2016-04-29, 19:00:49 (806700)
                  • Are you saying that bike could have an eletrohydraulically augmented brake? (无内容) - hopelessless (0 bytes) 2016-04-29, 17:00:48 (806698)

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