s(t) = 2 m/s ⋅ t − 30 m

s(t) = 2.16 m/s ⋅ t − 36 m

s(t) = − 0.2 m/s ⋅ t + 120 m

s(t) = 0 m/s ⋅ t + 40 m

s(t) = 0.8 m/s ⋅ t − 30 m

s(t) = 0.103 m/s ⋅ t − 18 m