Recent content by PierceJ

Homework Statement You are holding a sign as shown below. The sign (including the horizontal bar it hangs from) has a mass of 1.80 kg and is 36.5 cm wide. The sign is hanging from a 1.30 m tall, 4.16 kg vertical post. The sign is symmetric with a uniform mass distribution as implied by the...

It worked on a similar problem that had a weight handing on the end too. We don't do anything more complicated than that so it should work. I mean the parts of the question are split so I have to find the tension first.

But I just used those and got the right answer?

Wait I think I got it here. Tsinθ(2.41) - mg(1.45) = 0 Fx = Tcosθ Fy = Tsinθ - mg

Tsinθ(2.41) - mg(1.45) = 0 I don't know what to do with Fx and Fy, I don't think I'm properly understanding.

Is it Fx = Tcosθ Fy = Tsinθ ?

And therefore you should probably correct me right?

I don't understand why I don't need the angle. Can I get a little more help than just this?

Torque = Fd Tsinθ(2.41) - mg(2.9) = 0 Find the angle through trig?

Gravity and the Tension in the wire

Homework Statement Homework Equations I do not know exactly. The Attempt at a Solution I honestly have no idea how to approach this.

Okay. So the normal force is equal to mgsinθ?

Ah I see, I got it now. Thank you for putting up with me haha.

The momentum before is 0? Cause the guy isn't moving? Momentum of the snowball after is its mass times the velocity given in the problem.

Homework Statement http://i.minus.com/iVbsy2FomprcM.PNG http://i.minus.com/iVbsy2FomprcM.PNG Homework Equations F=ma The Attempt at a Solution I'm struggling with the normal force and I'm not sure if the component of the force F is the cosine or sine. I see examples where its sine but that...