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A roller coaster car of mass 500 kg moves down a steep track, converting its potential energy into kinetic energy. At the lowest point, it is moving at 20 m/s. If the car encounters a section with friction that removes 30,000 J of energy, what is its new speed, assuming no other forces act?
โ 20 m/s
โ 10 m/s
โ 18 m/s
โ 15 m/s
โ 18 m/s
Practice and solve "A roller coaster car of mass 500 kg moves down a steep track, converting its potential energy into k..." for General Science - Previous Year Paper 2026. The correct answer is Option C: โ 18 m/s. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "A roller coaster car of mass 500 kg moves down a steep track, converting its potential energy into k..." for General Science - Previous Year Paper 2026. The correct answer is Option C: โ 18 m/s. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.