Van A and Car B are moving in a road as shown. a) What is the acceleration of Van A?
b) What is the acceleration of Car B?
c) How can we reduce the force of the accident?

Things I solved:
Force applied on Van A = 100,000N to the left
Force applied on Car B = 100,000N to the right

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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 = 2.6 m below the tank bottom which is a = 6.7 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). report your answer in meters to two decimal places.