5.D6.A7.C8.D (42/14=3 420/3=140)9.D10. C (125Hp*0.65= 81)Chapter 2 Study Questions1.Metric system2.Knots3.Gravity4.Weight5.Mass6.A unit of mass having a value of approximately 32.175 lb under standard atmospheric condition is a slug7.Density is mass per unit volume8.Specific gravity is the ratio of a density of substance to the density of water 9.Hydrometer 10. Speed11. Velocity12. Inertia13. Acceleration14. The highest velocity that is reached by a falling object is terminal velocity15. Friction16. Thrust17. Linear and angular18. A weight attached to the end of a chord and and twirled around will produce a force tending to cause the weight to fly outward is called the centrifugal force. An equal and opposite force pulling the weight inward is called the centripetal force.