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请按照下面的顺序学习并完成内容的打卡 Please study and complete the check-in content in the following order.
Momentum is a vector, and it has the same direction with ; resultant force is a vector, and it has the same direction with .
2. Newton's Second Law states that is directly proportional to the rate of
3. Why does a car driver exhibit less injury when an airbag induces a stop?
The Change in (Δp) is constant. The Airbag/Seatbelt the (Δt) of the impact. According to F=Δp/Δt, a larger Δt results in a Force. Smaller force means less damage.
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Resultant force is N (with 2 significant figure).
Force X is N (with 2.s.f)
kgm/s
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Newton's 2nd Law 打卡I accomplish 我完成了 Evidence 证明 (Screenshot) 截图 未选择文件 文件大小不超过1M * 提交 |
