Recent content by speko1

Homework Statement How to write an engineering report? Could you refer me to links for how to write engineering reports? I had been given a task to make a jib crane, and then to write an engineering report. Anything would be helpful. Cheers Homework Equations The...

Homework Statement Need to do calculations for the jib. The jib is 600 mm long and 40 mm wide. It is attached to a base at the bottom with a pin. The cable is going through from the motor, and at the top there is a pulley. We have to lift 2 kg of weight with a motor. The jib is very...

Also, that is exactly what i did for the first time when i got the answer to be 79, so don't think that will work. Thanks for your help anyway

Nope, that is all i had to present in my FBD. Once i find the value of theta, i can solve for l(AB) by trig. either AB/sin 30= 1.2/sin (180 -theta - 30)= AC/sin theta or tan theta=sin theta/cos theta, anyway by using trig functions

sorry again, seems there is the same problem with pending, u can take a look at the diagram here http://img378.imageshack.us/gal.php?g=fbdofquestion5.png

Haha sorry man, I just realized what you were talking about. here is the full pic of that question. By the way i got the answer of 79. ill post my full working tomorrow, but that is pretty much all i had done.

Hello mathmate, The answer i get is not completely opposite to what the lecturer is looking for, it is just that it is not the right one. Apparently there are more than one answers. I summed all the forces in x direction, y direction, looking at the diagram(attached) as a 2D body. When...

Homework Statement The tension in the tow rope pulling the car in Newtons is 2 500N. Determine the minimum length of the rope l, between A and B, so that the tension in either AB or AC does not exceed the tension of 3 200 N. Homework Equations Fy = 0 Fx = 0 The Attempt at...

Don't worry. The question is very complex but i solved it. Now i got another question :-p that I am going to post, so please help if you can

Hello Jay, That definitely helped a lot, as I was kind of stuck on it. Still, I don't know how to calculate the tension in the rope which is the same as the weight of the rigid body. I am guessing that the top part is(the cable holding the pulley) has a tension of 1978 N, and the angle...

Also I don't get it where you got 30 degrees angle? The angle between the imaginary axis and the rope holding the pulley is 40 degrees.

Hey Jay, Thanks for the help. The question is asking what the weight in the block on the other side of the rope pulling it downwards. I am pretty sure that the theta is 80 degrees, as the lecturer confirmed it, but I just don't get which of the two ropes has the tension of 1978N. I...

Homework Statement QUESTION 3 Assume that the pulley at A is a small frictionless pulley. The cord AB, and the cord supporting the block are made from the same cord. Determine the maximum weight rounded down to the nearest Newton of the block that can be suspended in the position shown if...