210 m = S = \frac{a t \cdot t}{2} = \frac{16000 m/s \cdot t}{2} = 8000 m/s \cdot t

${210 \text m = S = \frac{at \cdot t}{2} = \frac{16000 \text{m/s} \cdot t}{2} = 8000 \text{m/s} \cdot t}$

Error