Acar traveling at 20 m/s when the driver sees a child standing in the road. he takes 0.80 s to react, then steps on the brakes and slows at 7.0 m/s2. how far does the car go before it stops?

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)