38000= 1/(2mv^2)

解

38000 = \frac{1}{2 m v ^{2}}

v = \frac{1}{20 190 m}, v = - \frac{1}{20 190 m}

解答ステップ

38000 = \frac{1}{2 m v ^{2}}

以下で両辺を乗じる:

v^{2}

38000 v^{2} = \frac{1}{2 m}

解く

38000 v^{2} = \frac{1}{2 m} : v = \frac{1}{20 190 m}, v = - \frac{1}{20 190 m}

v = \frac{1}{20 190 m}, v = - \frac{1}{20 190 m}