Determine what is the change in the car kinetic energy

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Reference no: EM13667801

A roller coaster (425 kilogram) moves from C (5.00 meter above the ground) to D (26.0 meter above the ground). Two non conservative forces are present: friction does -2.00 x 10⁴ Joule of work on the car, and a chain mechanism does +3.00 x 10⁴ Joule of work to help the car up a long climb. Determine the change in the car kinetic energy, ΔKE = KE_f - KE_i, from C to D? What is the answer in J?

Reference no: EM13667801

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