本题目来源于试卷: gc physics textbook chapter 5 problems，类别为 通用国际物理
[问答题]
Explain how a runner expcots t*agk6vl(1uvdj0 sp5(kp 83 iq6eriences “free fall” oroz s2rag, unqqgoz36fn+ bp k2n 3..a- “apparent weightlessness” between n-. 2aorgazb3 q6q o. +g,pkzn3n2fus steps.
参考答案: When the runner
has both feet off the ground, the only force on the runner is gravity – there
is no normal force from the ground on the runner. This lack of normal force is interpreted as
“free fall” and “apparent weightlessness”.
本题详细解析:
暂无
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