Recent content by Dr Meow

  1. D

    Forces surrounding Car on a Bridge

    Would that be the rotational acceleration around point A?
  2. D

    Magnitude and Direction Force Problem

    Even then I end up with -24.325 which is wrong.
  3. D

    Magnitude and Direction Force Problem

    So would it end up being tan(α) = (11)*sin(80)/[(8 + 11)*cos(80)]? Then (α - 30) Because when I computed that all out it ended up to be the wrong answer.
  4. D

    Magnitude and Direction Force Problem

    Ok. So here's what I've done: To get the magnitude I drew a diagram of the 30 degree angle downwards and the 50 degree angle upwards. Then combined them to make a total of 80 degrees and used law of cosines to find the hypotenuse of the total triangle created and found that to be 14.29, which is...
  5. D

    Calculating Net Force and Direction on Bolt A

    I'm sorry, but I'm still a little lost on what you mean. I know how to do trig but I don't really understand the terminology. By components would you mean to use sin30=x/150 in order to get the opposite length for the force in quadrant 1?
  6. D

    How Does Fred the Monkey's Descent Affect the Cylinder's Rotation?

    Sorry, my attempts at a solution only led me to the fact that Tension=MfG-MfA and then Tension=1/2McA and therefore MfG-MfA=1/2McA. "A" being acceleration, Mf being Mass of Fred, and Mc being mass of the cylinder and G being gravity.
  7. D

    How Does Fred the Monkey's Descent Affect the Cylinder's Rotation?

    Homework Statement A 13-kg solid steel cylinder with a 10-cm radius is mounted on bearings so that it rotates freely about a horizontal axis. Around the cylinder is wound a number of turns of a fine gold thread. A 4.0-kg monkey named Fred holds on to the loose end and descends on the...
  8. D

    Calculating Net Force and Direction on Bolt A

    By vector form do you mean to find the opposite of each angle's side length? As in the O for SOH CAH TOA?
  9. D

    Calculating Net Force and Direction on Bolt A

    Homework Statement Four forces act on bolt A as shown. Determine the net force (in Newtons) and direction (in degrees upward from the x-axis) acting on the bolt. Homework Equations Law of Sines: a/sinA = b/sinB = c/sinC Law of Cosines: a^2= b^2 + c^2 - 2bccosAThe Attempt at a Solution I...
  10. D

    Magnitude and Direction Force Problem

    Hey sorry it's taken me so long to reply I had forgotten about this. To be honest I did forget how I found the magnitude. And I'm still not sure because it's been even longer. Is there a way you could help me do just the degrees to the horizontal? Thanks
  11. D

    Magnitude and Direction Force Problem

    I'm sorry, I didn't understand what you really meant by the resultant in this case. When you said solve for the resultant.
  12. D

    Magnitude and Direction Force Problem

    Isn't the resultant just the horizontal line? I'm sorry I did this problem a while ago and I don't remember how I did it. And the reason for the accuracy is because I'm doing this problem on WebAssign and you can't round to put in the right answer.
  13. D

    Magnitude and Direction Force Problem

    Homework Statement Use the cosine and sine rules to determine the magnitude and direction of the resultant of a force of 11 kN acting at an angle of 50 degrees to the horizontal and a force of 8 kN acting at an angle of -30 degrees to the horizontal. Homework Equations Law of Sines...
Back
Top