Recent content by John A

  1. John A

    Acceleration of couch pushed by non-horizontal force

    Thank you for your clarification and help.
  2. John A

    Acceleration of couch pushed by non-horizontal force

    I changed the signs and I think I got it this time. The problem I made is I wasn't accounting the fact that Fg has a negative value so Fapp-y should be subtracted from Fg (I think) since Fapp-y is positive and moving in the opposite direction of Fg. Ps. Ignore #3 on my picture, it was for a...
  3. John A

    Acceleration of couch pushed by non-horizontal force

    I found the equation online, it was Fn Fg + Fay (Fapp in y-direction) I'm not sure what LaTeX is but next time, I think I'll just draw up a diagram with a picture software to make it clearer. I think I may just move on to a different question because I'm stumped on this one.
  4. John A

    Acceleration of couch pushed by non-horizontal force

    I got 4.88 x 10^-4 for my acceleration, which is really low.
  5. John A

    Acceleration of couch pushed by non-horizontal force

    Thank you all for your help, I'll attempt to solve it and reply if I get stuck. I'll post my final answer when finished.
  6. John A

    Acceleration of couch pushed by non-horizontal force

    Is this a better FBD? Also I'm confused about the significance of the force being applied at an angle. I would just find the vertical and horizontal results of Fapp like I did previously, correct?
  7. John A

    Acceleration of couch pushed by non-horizontal force

    Homework Statement An 82 kg couch is being pushed with a force of 56 N at an angle of 40o above horizontal. Friction is to be considered. Draw a free-body diagram representing this scenario.If the coefficient of friction between the couch and the floor is 0.051, what is the acceleration of...
  8. John A

    Solve Kinematics Q13: Golf Ball Height & Distance

    The ball has to come to a stop, therefore final velocity in both x & y direction must equal 0 m/s
  9. John A

    Solve Kinematics Q13: Golf Ball Height & Distance

    13) A golfer hits a ball at 100 m/s with an angle of elevation of 30 degrees towards a green. The acceleration due to gravity is 9.8 m/s^2 [down]. There is no resistance. a) If the green is at the same height as the golfer then find how long the ball is in the air, and how far away the ball...
  10. John A

    Physics Lab -- Don't Understand Procedure....

    Thanks for your help, I write what I learned and speak to my teacher tomorrow.
  11. John A

    Physics Lab -- Don't Understand Procedure....

    I was on the app earlier today, I noticed that the larger the slinky was, the greater the magnetic field expanded but apart from that I wasn't too sure what was going on. Electricity & Magnetism was my worst unit in Physics btw :/
  12. John A

    Physics Lab -- Don't Understand Procedure....

    Its all theoretical, therefore I'm not actually building one (thank God!)
  13. John A

    Exploring the Deeper Principles of Physics for Students

    Hello my name is John. My main reason for signing up here was to expand my knowledge of physics as well as seek help from those who have better knowledge of physics. I'm finishing my grade 11 physics course in two days and I will be beginning my grade 12 course on late January of 2017. I'm a...
  14. John A

    Physics Lab -- Don't Understand Procedure....

    I have a physics lab and the main question is: 'How does the radius of the loops of a solenoid affect the magnetic field produced by the coil?' For my hypothesis, I wrote: "The larger the radius of a solenoid is,the weaker the magnetic field will be." I searched online and found out I was...
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