Recent content by Katie Morton

  1. K

    Conservation of Angular Momentum

    Homework Statement Imagine that you are standing on the edge of a cliff looking out over the vista… a sudden gust of wind nudges you off balance and you start tilting out over the edge of the cliff…. Yikes! You start wind milling your arms to regain your balance. A) do you rotate your arms...
  2. K

    Calculating Angular Velocity and Linear Acceleration in a Speed Skater's Curve

    tangential velocity: vt = rω so you could rearrange to ω = vt/r ω = 12/20 ω = 0.6 rad/sec would that be correct? And for the second part is it just a simple a=Δv/Δt question because it is asking for linear acceleration?
  3. K

    Calculating Angular Velocity and Linear Acceleration in a Speed Skater's Curve

    Homework Statement A speed skater increases his speed from 10 m/s to 12.5 m/s over a period of 3 seconds while coming out of a curve of 20 m radius. a. What is the magnitude of his angular velocity as he leaves the curve? Be sure to include proper units for your answer. b. What is his average...