A truck skids for a distance of 25\,\text m25m25, start text, m, end text with the road pushing on its tires with force of 1500\,\text N1500N1500, start text, N, end text as its brakes are applied. What is the change in kinetic energy for the truck?

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.