Recent content by jackspicer

  1. J

    Need help clarifying statics problem.

    http://postimage.org/image/8i5i2dtgr/ http://postimage.org/image/8i5i2dtgr/Homework Statement What is the magnitude of the internal force in member BC?Homework Equations So I figured out the reaction force at A and D by taking the moments about point A to find the vertical force at D and then...
  2. J

    Why can't we use cons of energy in this problem? (conceptual)

    Two pucks collide on a frictionless air-hockey table. Initally, puck A is traveling at 3.5 mls and puck B is at rest. After the collision, puck A moves away at a speed of 2.5 m/s and an angle of 30.0 from the initial direction. Find the final velocity of puck B. Puck A has a mass of 3.0 kg and...