Fast review mode: answers are shown by default so you can skim quickly. Hide them if you want to self-test.
Use the following information to answer questions:
A woman of mass 55 kg begins motionless atop a hill. She skis all the way down the frictionless hill, which is 90 m high, to height 0 m, and then she ascends another hill that is 75 m high. This skier is in a conservative system, with gravity as the only force acting upon her.
Join 4M+ learners. Unlock unlimited quizzes, wrong-answer tracking, flashcards + reminders, study guides, and 1-on-1 challenges.