If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( v )
v = 0
v = 0
v = 0
v in (-oo:0) U (0:+oo)
2/9.4 = 0.2/v // - 0.2/v
2/9.4-(0.2/v) = 0
2/9.4-0.2*v^-1 = 0
-0.2*v^-1 = -0.21276596 // : -0.2
v^-1 = 1.0638298
-1 < 0
1/(v^1) = 1.0638298 // * v^1
1 = 1.0638298*v^1 // : 1.0638298
0.93999999 = v^1
v = 0.93999999
v = 0.93999999
| (6x^2)+12x+156=0 | | 4200=200x-2x^2 | | 9z+-10=10z+20 | | 13x-(-5)=70 | | -4=-4x-3(-4x+4) | | 40x^3-24x^2+35x-21=0 | | 0.25(8x+16)=6x+12 | | 16x-0=2 | | 2100=x-x^2 | | x^2+2x+1=.4 | | 6x+12x+156=0 | | 3x+4y+90=180 | | 5x+8=-93 | | 3x=2(2+2y) | | Q+-8=-10 | | 69/4=1/2x | | 2(3y-4)=3(y-.67) | | 180n-360=168n | | 16/7=x/9 | | Z+-5=2 | | 7x+2x+13x+90=180 | | y=90x+200 | | x=f(x+2)-[f(5x^2+7)+2] | | 9/4y−12=1/4y−4 | | X+3y=-65 | | 4x-2=6.3 | | y=-3(3)-3 | | h(t)=-16t^2+288t+20 | | 5x+5=2x+0 | | .36x+x^2=.82 | | 112-5v=17 | | 3x^2-24/x=0 |