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6 ptsPhysics 1 · FRQ Trainer
Free-response 1 of 2 · Unit 4/5: Energy and Work
Prompt
A 2.0 kg block is released from rest at the top of a frictionless incline of height 1.8 m. At the bottom it slides onto a horizontal surface with μk = 0.25 and stops. (a) Using energy conservation, find the speed at the bottom of the incline. (b) Find the distance it travels on the rough surface before stopping. (c) On a labeled axis, sketch kinetic energy vs horizontal distance on the rough surface. (Use g = 10 m/s².)
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