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When you round a curve in a car, why is your body "pulled" toward the outside of the circular path? Centrifugal Force Centripetal Force Newton's First Law Centripetal Acceleration	How could you double your speed in a circle and still maintain the same centripetal force? Double Radius Triple Radius Quadruple Radius Not Possible Not Enough Information	How much heavier do you feel in an amusement ride that makes .5 rev/s with a radius of 3 meters? Same Two times Three times Four times Not enough Information	Is there a spot on a merry-go-round where you can stand and feel no centripetal force? Yes No	The posted speed limit for a certain curve is 40 mph. If the radius of that curve was 50 meters, how fast could you actually go without skidding on a dry day? 45 mph 50 mph 55 mph 60 mph Not Enough Information
How much does a 70-kg pilot feel he weighs when pulling out of a dive with a 1000 meter radius and speed of 300 m/s? 500 pounds 1060 pounds 1570 pounds 1430 pounds 155 pounds	How much do you feel you weigh when you ride a car over a hill with radius 20 meters at a speed of 15 m/s? Same One-half Zero One-third Not enough Info	What is the actual weight of a 100 pound person located in an orbit that is two earth radii from the center of the earth? Zero 100 pounds 25 pounds 50 pounds 75 pounds	What is the new g of a planet, in terms of the earth's g, that has three times the mass of the earth but 2 times the radius? 3g 1/2g 3/4g 4g 3/2g	Radius Mass Density