Algebra Equations?

1 ⤊

Solve the following equation for v
S=-1/2gt^2+vt

(I got V=s(-1/2g+2)
Am I right?

2007-10-24 09:26:23 · 3 answers · asked by hello1 2 in Science & Mathematics ➔ Mathematics

Assume equation should read as:-
S = (-1/2) g t ² + v t
2 S = - g t ² + 2 v t
2 v t = 2 S + g t ²
v = ( 2 S + g t ² ) / 2 t

2007-10-28 08:07:11 · answer #1 · answered by Como 7 · 1⤊ 0⤋

S=-1/2gt^2+vt, isolate v,note signs
S + 1/2gt^2 = vt, div by t
S/t + (1/2)gt^2/t = v, sipmplify
v = S/t + (1/2)gt. Done.

2007-10-24 16:30:42 · answer #2 · answered by pbb1001 5 · 0⤊ 0⤋

add the 1/2gt^2 to both sides first:

S + 1/2gt^2 = vt, now divide by t

(S + 1/2gt^2)/t = v

done

2007-10-24 16:31:28 · answer #3 · answered by Marley K 7 · 0⤊ 1⤋