Unit 5: Work, Energy and Power
Problem Set C
A 562-kg roller coaster car is moving with a speed of 19 m/s at the very end of the ShockWave roller coaster track. A hydraulic braking system applies a 11437-Newton force at the loading dock to slow the car to a speed of 2.6 m/s. Over what horizontal distance (in meters) is the force applied?
0.5 m vi2 + m g h i + F d cos = 0.5 m vf2 + m g h f
General information about work and energy problems is described on the Set C Overview page.
A detailed discussion of how to analyze physical situations using work-energy bar charts is provided online at The Physics Classroom.
A detailed description of the work-energy relationships for situation in which external forces are doing work is provided online at The Physics Classroom.
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