Question: 1. A rock is thrown downward with velocity 10 ft/sec from a bridge 100 ft above the water. How fast is the rock going when it hits the water?
2. A car starts from rest at time t = 0 and accelerates at -0.6t + 4 meters/sec2 for 0 ≤ t ≤ 12. How long does it take for the car to go 100 meters?