Recent content by NoobeAtPhysics

Hmm, I still don't comprehend why mathematically the solution is what it is

Homework Statement Determine whether each joint is in tension or compression (correct answers on the image) Homework Equations sum of force = 0 The Attempt at a Solution On Joint I, I don't understand why IH is in tension. The pin is exerting a horizontal force and...

Homework Statement Find the tension in the rope Homework Equations F=ma The Attempt at a Solution I was wondering whether I could use method of sections in this problem to divide the two systems so that I could find the tension in the rope. I have a strong feeling that I...

Homework Statement Find the moment (vector) of the force acting on the “L-shaped” bracket about the axis indicated. Homework Equations m=rf The Attempt at a Solution Hypotenuse of triangle = sqrt(13) Moment = sqrt(13)* 5 nm This is a wrong according to my textbook...

Thanks. I understand now, magnitude. Sometimes these words pass by without noticing. also, you're right I probably should write the units. I always do in my written work but I thought everyone would understand what I meant when I shown the work here. Thank you

The answer is a2=3/2 * a3 or 3/4*a1 which is the solution, I'm not sure how that was achieved.

Any ideas

Homework Statement The diagram shows a block and pulley system where all the surfaces are frictionless, and all the pulleys are massless and frictionless. Express the magnitude of the acceleration of Block 2, a2, in terms of a1 and/or a3. Homework Equations F=ma The...

Homework Statement The diagram shows a block and pulley system where all the surfaces are frictionless, and all the pulleys are massless and frictionless. Once all Blocks have been let go, what is the ratio of the magnitude of the acceleration, a1, of block 1 to the magnitude of...

DE is compression and therefore EF is in tension

Any ideas?

Homework Statement A small square truss shown is supported by a pin joint at I and a roller at A. Label all members of the truss by Z (for zero force member), C (for compression) or T (for tension). Homework Equations The Attempt at a Solution So this was an exam question...

"Ay = By = F/2" but Ay is -3F and By = 3F (which is the correct answer) Also there are no rollers in this problem only pins.

Thank you but I don't know what Ay and By are, so that wouldn't help me would it?

Homework Statement The truss is suspended by two pin joints. Each segment is 3 m wide and 4 m high. The applied force is F = 1 N. What is the force in member 2? Homework Equations Sum of force = 0 The Attempt at a Solution Using method of sections (to get force at 3), so...