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受欢迎的代数 >

solvefor v,F=(mv^2)/(r^2)

解答

求解

v, F = \frac{m v ^{2}}{r ^{2}}

解答

v = \frac{r F}{m}, v = - \frac{r F}{m}; r \neq = 0, m \neq = 0

求解步骤

F = \frac{m v ^{2}}{r ^{2}}

交换两边

\frac{m v ^{2}}{r ^{2}} = F

在两边乘以

r^{2}

m v^{2} = F r^{2}; r \neq = 0

两边除以

m; r \neq = 0, m \neq = 0

v^{2} = \frac{F r ^{2}}{m}; r \neq = 0, m \neq = 0

对于

x^{2} = f (a)

解为

x = f (a), - f (a)

v = \frac{F r ^{2}}{m}, v = - \frac{F r ^{2}}{m}; r \neq = 0, m \neq = 0

化简

\frac{F r ^{2}}{m} : \frac{r F}{m}

化简

- \frac{F r ^{2}}{m} : - \frac{r F}{m}

v = \frac{r F}{m}, v = - \frac{r F}{m}; r \neq = 0, m \neq = 0

作图

流行的例子

0 = x^{2} + 20 x - 60

b x^{2} - b = x - b^{2} x

3 (x^{2} - 7) - 4 = - 7

x^{2} - 31 = 2 x

solvefor x,3x^2+30x-5=0

so l v e f or x, 3 x^{2} + 30 x - 5 = 0