Q6. A cyclist accelerates from \( 10 \, \text{m/s} \) at \( 2 \, \text{m/s}^2 \) for \( 3 \, \text{s} \), then decelerates at \( 1.5 \, \text{m/s}^2 \) until its speed is \( 12 \, \text{m/s} \). What is the total distance covered?
- A. 75 m
- B. 76.38 m
- C. 78 m
- D. 74 m