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WAEC - Physics (2002 - No. 9)
An object is released from rest at a height of 25m. Calculate the time it takes to fall to the ground. [g = 10ms
-2
]
25.00s
10.00s
2.50s
2.24s
解释
t = \(\sqrt{\frac{2s}{g}} = \sqrt{\frac{2 \times 25}{10}} = 2.24\)
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