Recent content by ComputerForests000

  1. C

    What is the net acceleration of the coin on a rotating disk?

    Homework Statement A disk is initially at rest. A penny is placed on it at a distance of 1.4 m from the rotation axis. At time t=0s, the disk begins to rotate with a constant angular acceleration of 1.9 rad/s^2 around a fixed, vertical axis through it's center and perpendicular to it's plane...
  2. C

    Understanding meaning of inertial reference frames

    Homework Statement Which of these situations describes you observing from an inertial reference frame? a. you are in the car of a train, seated at a table, and the train suddenly slows down b. you are in the car of a train, going north, and the train goes around a curve to go west c. you are in...
  3. C

    How to Calculate the Bird's Net Displacement Using Vector Addition?

    Homework Statement "A bird flew 40 m to the west, then 100 m in a direction 36.9 degrees to the north of east. Use the algebraic addition of vectors to fins the magnitude of the bird's net displacement" Use sin (36.9) =0.6 and cos (36.9) = 0.8 Homework Equations Vector addition? A =...