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  • Driving in your car with a constant speed of 12 m/s,you encounter a bump in the road that has a circular cross-section.T

    Driving in your car with a constant speed of 12 m/s,you encounter a bump in the road that has a circular cross-section.The radius of curvature of the bump is 36.4 m.At what speed must you go over the bump if people in your car are to feel "weightless"?
    英語人氣:481 ℃時(shí)間:2020-09-09 14:23:53
    優(yōu)質(zhì)解答
    車內(nèi)的人感覺失重的話,就是說座位沒給人支持力,對于人來說,只受重力影響.mg=mv^2/r
    可以得到v=根號(gr)=18.9m/s
    不過還是有點(diǎn)疑問,最好是有張圖
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