3. Dr. Teismann is traveling to Halifax at 110 km/hr when he sees a deer crossing the road 50 metres ahead. After slamming on the brakes, what is the minimum constant deceleration Dr. Teismann must achieve to avoid hitting the deer? Use the fact that v(t) = [a(t) dt, s(t) = [v(t) dt, where a(t) is acceleration, v(t) is velocity, and s(t) is position over time.