Recent content by 385sk117

  1. 3

    Is there any normal stress on torsional member?

    Homework Statement is there any normal stress on torsional member? Homework Equations The Attempt at a Solution My professor showed me a circular rod made up of rubber and she made a rectangular hole on the side of it and asked whether there is any normal stress on the torsional...
  2. 3

    Solving Node Voltage: Va = Vb x R1/(R1+R0)

    Homework Statement Find the node voltage Homework Equations Va = Vb x R1/(R1+R0) The Attempt at a Solution I didnt have the original picture of the question but this example is exactly same as the question that i had to solve. but I don't understand this thing from the first...
  3. 3

    Finding the Instantaneous Center of Rotation for Constant Angular Velocity

    Homework Statement At the instant shown, bar AB has a constant angular velocity of 25 rad/s counterclockwise. Dtermine at that instant a) the angular velocity of the rectangular plate FBDH, b) the velocity of point F Homework Equations Va = Vb + Wba x Ra/b The Attempt at a Solution...
  4. 3

    How Do You Calculate Velocity and Acceleration in a Belt and Pulley System?

    Homework Statement Three belts move over two pulleys without slipping in the speed reduction system. Point A on the input belt moves to the right with a constant spped of 0.6m/s. Determin the velocity of point C on the output belt, and the acceleration of point B on the output pulley...
  5. 3

    Finding Reactions on Members Supported by Forces

    Oh so the force is actually acting downwards on the right support? I thought that because it is the force that is supporting the bar, it must acting upwards. Thanks
  6. 3

    Finding Reactions on Members Supported by Forces

    Homework Statement Find the reactions exerted on the members by the supports. Homework Equations Sigma Fx = Net force acting on x-axis = 0 Sigma Fy = Net force acting on y-axis = 0 Sigma M = Net Moments = 0 The Attempt at a Solution 10N/m -> changes to 4N at centre acting...
  7. 3

    Finding Moment About Any Point: Fixed Moment Value?

    The formula to find the moment about anypoint is Fxr right? but if the moment is given, for example 50Nm then the moment is fixed right? even if we change the regarding point on the system, the given moment is 50Nm regardless what point we are regarding to. Am I right?
  8. 3

    Solving Collar A, B, and C's Motion

    Homework Statement Collar A starts from rest at t=0 and moves upward with a constant acceleration of 9cms^-2. Knowing that collar B moves downward with a constant velocity of 45.7cms^-1, determine the time at which the velocity of block c is zero and the corresponding position of block c...
  9. 3

    Find the relationship between them

    Homework Statement The five ropes in the picture can withstand 1500n each, how heavy can w be without breaking any? Homework Equations The Attempt at a Solution First naming the tensions on the rope t1,t2,t3,t4,t5 and find the relationship between them, like t1 = 2t2 but i...
  10. 3

    Find the moment caused by all the forces

    Homework Statement two couples are acting on the frame. If the resultant couple is to be zero, find the distance d Homework Equations The Attempt at a Solution First find the point, Let's say A on the picture, and find the moment caused by all the forces 500cos30 x 0.9 acting...
  11. 3

    Solving for Tension & Angles in Ball Mass Problem: Help Needed!

    http://ruliweb6.nate.com:8080/ruliboard/gup/img_link7/436/435945_1.jpg Ball A B Mass m 2m Length of tread is 2R where R is the radious of the Circle. I have to find the tension on the tread and angles I could have found the angles by assuming...
  12. 3

    Composition of functions (in set)

    Ohh i got it. g(1) is 3 and as f has point (3,3) the answer is 3 thanks!