(1)
mg=kx なので
x=mg/k=0.050×9.8/100=0.0049[m]=4.9[mm]
(2)
エネルギー保存則より
1/2･mv²=1/2･kx²
v²=kx²/m=100×(0.1)²/0.050=20
v = √20=2√5 [m/s]
これでどうでしょうか？
Answers
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