Question

on a foggy day, two drivers spot in front of each other when 80 metre apart. They were travelling at 70kmph and 60kmph. Both apply brakes simultaneously which retard the cars at the rate 5 m/s^2. Which of the following statements is correct?
1. The collision will be averted
2. The collision will take place
3. They will cross each othe
4. They will just collide