Recent content by KrazySocoKid

Well, damn. Thanks mate haha.

Homework Statement You hold a bucket in one hand. In the bucket is a 480g rock. You swing the bucket so the rock moves in a vertical circle 2.8m in diameter. What is the minimum speed the rock must have at the top of the circle if it is to always stay in contact with the bottom of the bucket...

No problem. So I guess we are in the same class? I'll see you tomorrow then, internet stranger haha

It would be cool if I could get a confirmation on this too, but I'm 90% sure that's right.

It's like the exact same thing as normal force, but just the opposite and equal reaction. Weight has to do with Earth acting on an object. Normal force and weight aren't action/reaction pairs because the Earth has nothing to do with normal force, but everything to do with weight. So the force...

The handout specifies action/reaction pairs between the cart and box, so I don't think we can bring the ground into it. I think the two pairs are: Force of cart pushing up on box (normal force), force of box pushing down on cart (NOT weight, that's important) and then friction of cart acting on...

I'm not sure if you are actually in my class haha, but if you look at the handout the hint says that the force, P is only applied to the cart, so it doesn't pull Box A. So we can disregard the pull, because it only acts on the cart, not the box.

Okay actually I think I got it. Now it would be nice if someone just doubled checked my answer. Is the second action reaction pair: Friction force of box acting on cart pointing to the right, and friction force of cart acting on box pointing to the left?

Okay, so I think I have one nailed down. One pair is the force of the cart acting upward on the box (normal force) and the equal and opposite force of the box acting downward on the cart. Now I just need help determining the second action-reaction pair, and I believe it has something to do with...

You need to find the x and y components of all three of those force vectors. Then you will be able to find the magnitude and direction of the resultant vector. Do you know how to find the individual components?

Homework Statement Consider a box sitting on cart. When the cart is pulled with a force, P, the box A moves with the cart without slipping. In all questions, assume there is a negligible amount of drag. There is, however, kinetic friction between the cart and ground. What are the two sets of...