Q6. A car accelerates uniformly from \( 10 \, \text{m/s} \) to \( 25 \, \text{m/s} \) over \( 150 \, \text{m} \), then decelerates to \( 5 \, \text{m/s} \) over the next \( 80 \, \text{m} \). What is the total time taken?
- A. 12 s
- B. 13.9 s
- C. 15 s
- D. 14.5 s