Question

s=14-2t em que instante o espaço do movel e iqual a 3m

Answer 1

S = 14 - 2t
3 = 14 - 2t
2t = 14 - 3
2t = 11
t = 11/2
t = 5.5 s

BONS ESTUDOS!

Answer 2

$S=14-2.t\\\\3=14-2.t\\\\2.t=14-3\\\\2.t=11\\\\t=\frac {11}{2}\\\\t=5,5s$