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Q. A police car is travelling at a velocity of 16 m/s due north, when a car zooms by at a constant velocity of 45.0 m/s due north. After a reaction time 0.30 s the policeman begins to pursue the speeder with an acceleration of 4 m/s^2. Including the reaction time, how long does it take for the police car to catch up with speeder?

Q. A 5 m x 12 m swimming pool slopes linearly from a 1.20 m depth at one end to a 3.40 m depth at the other. What is the mass of water in pool?

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