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  1. B

    Speed up a hill

    Homework Statement At the base of a frictionless icy hill that rises at 29.0deg above the horizontal, a toboggan has a speed of 12.0 m/s toward the hill. How high vertically above the base will it go before stopping? Homework Equations Wtot=K2-K1 K=1/2mv^2 K2=1/2mv^2=K1+Wtot The...
  2. B

    Uniform circular motion issue

    Homework Statement A woman rides on a Ferris wheel of radius 16 m that maintains the same speed throughout its motion. To better understand physics, she takes along a digital bathroom scale (with memory) and sits on it. When she gets off the ride, she uploads the scale readings to a computer...
  3. B

    Newton's Law Flat Curve

    [SOLVED] Newton's Law Flat Curve Homework Statement You are riding in a school bus. As the bus rounds a flat curve at constant speed, a lunch box with a mass of 0.470 kg suspended from the ceiling of the bus by a string of length 1.88 m is found to hang at rest relative to the bus when the...