s(t) = 10 m/s ⋅ t − 50 m

s(t) = 0.171 m/s ⋅ t + 180 m

s(t) = − 0.75 m/s ⋅ t + 180 m

s(t) = 20 m/s ⋅ t + 400 m

s(t) = 0.067 m/s ⋅ t + 60 m

s(t) = − 6.25 m/s ⋅ t + 40 m