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分かりません【赤線部分】

6X4.0 =1 4X2.0ニ= 2.8m/s

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✨ Best Answer ✨

2×9.8×0.40=19.6×0.40
このままだと何かの二乗で表せないので
19.6=10×1.96として変形します
つまり、10を0.40に掛けてあげることで、
1.96×4.0 が出ます

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