An inquisitive physics student, wishing to combine
Chapter 4, Problem 4.70(choose chapter or problem)
An inquisitive physics student, wishing to combine pleasure with scientic inquiry, rides on a rollercoaster sitting on a bathroom scale. (Do not try this yourself on a roller coaster that forbids loose heavy packages.) The bottom of the seat in the rollercoaster car is in a plane parallel to the track. The seat has a perpendicular back and a seat belt that ts around the students chest in a plane parallel to the bottom of the seat. The student lifts his feet from the oor, so that the scale reads his weight, 200 lb, when the car is horizontal. At one point during the ride, the car zooms with negligible friction down a straight slope inclined at 30.0below the horizontal. What does the scale read at that point?
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