If velocity is increasing what dose that indicate about the direction of the acceleration?

Which branches of natural science include the study of an organism that lived 10 million years ago

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)

The force it would take to accelerate an 900-kg car at the rate of 6m/s2