Respuesta :
You said D = vt+ (1/2)at²
Multiply each side by 2 : 2D = 2vt + at²
Subtract at² from each side : 2D - at² = 2vt
Divide each side by 2t : v = (2D - at²) / 2t
v = D/t - at/2
first multiply each side by 2
then subtract at² from each side
Divide each side by 2t :
v = D/t - at/2
then subtract at² from each side
Divide each side by 2t :
v = D/t - at/2