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6. Figure shows a water slide ride in which a glider is sho water silide by a spring along to groundt onless) track that takes the glider from a horizontal secc eompression of the spring is 5m, the spring constant is 3.2 x 10 track is US 0.80. Through what distance L does the glider slide along the ion down level. As the t to rest by friction. The total mass of glider and its rider is glider then moves along ground level track, it is gradd 200 kg. the initial N/m, the the ground level tal height is 35 m and the coefficient of kinetic friction along ground level track until it stops. Figure 8-17 A spring-loaded amusement par
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KEY IDEAS Before we touch a calculator and start plugging numbers into equations, we need to examine all the forces and then determine what our system should be. Only then can we decide what equation to write. Do we have an isolated sys- tem (our equation would be for the conservation of ern ergy) or a system on which an external force does work (our equation would relate that work to the systems change in energy)? Forces: The normal force on the glider from the track does no work on the glider because the direction of this force is always perpendicular to the direction of the gliders displacement. The gravitational force does work on the glider, and because the force is conservative we can associate a potential energy with it. As the spring pushes L: Figure A spring-loaded amusement park water slide.

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