PH-382

Free fall

Physics · Secondary 3 · Medium · Free fall

1. 40 $\text{m s}^{-1}$
2. 20 $\text{m s}^{-1}$
3. 4.0 $\text{m s}^{-1}$
4. 50 $\text{m s}^{-1}$

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