PH-1663

Free fall

Physics · Secondary 4 · Medium · Free fall

1. $5.0\,\text{m s}^{-1}$
2. $10\,\text{m s}^{-1}$
3. $15\,\text{m s}^{-1}$
4. $20\,\text{m s}^{-1}$

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