Suppose a car travelling at 12 m/s, sees a traffic light turn red. After 0.510s have elapsed, the driver applies the brakes, and the car decelerates at 6.2 m/s2. What is the stopping distance of the car as measured from the point where the driver first notices the red light?

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)