A 95kg$95kg$ pole−$-$vaulter falls from the peak of their jump ($($at rest)$)$ at a height of 5.12m$5\mathrm{.}12m$ above a foam pad. The pole−$-$vaulter comes to rest 0.8s$0\mathrm{.}8s$ after landing on the pad.

1. What is the athlete's velocity just before reaching the pad?

2. What is the average force exerted on the pole−$-$vaulter due to the collision?