Recent content by moneenfan

  1. M

    Non Uniform Circular Motion Problem

    well i know that Fnet(r)=ma(r)=mv^2/r=mw^2r Fnet(t)=0 if its uniform circular motion or ma(t) for non uniform circular motion Fnet(z)=0 Whats messing me up exactly is that were not given a mass only an acceleration. Im not sure how to approach this
  2. M

    Non Uniform Circular Motion Problem

    A new car is tested on a 200m diameter track. If the car speeds up at a steady 1.5 m/s^2, how long after starting is the magnitude of its centripetal acceleration equal to the tangental acceleration? So we know that our acceleration is equal to 1.5 m/s^2, our radius of our circle is 100m. I...
  3. M

    The train and the ball question

    well it does to begin with, but as the train begins to decelerate we have a change in velocity and it begins to accelerate negatively. We no longer maintain constant velocity and zero acceleration. Could it be that the ball while at constant velocity maintains itself relative to the floor of the...
  4. M

    The train and the ball question

    when it comes to rest at 8 degrees from the vertical the ball is stationary with respect to you. is it acceleration relative to the ground? What evidence do you have for or against the ball accelerating relative to the ground? based on your observations the ball is the reference frame of the...
  5. M

    The train and the ball question

    you are on a train moving along a track at constant velocity. hanging from a switcase in an overhead luggage compartment is a balloon the end of a string. as long as the train continues at constant speed you observe the string is vertical . as you neer your destination you obsrve the ball swing...
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