Recent content by spursfan2110

So if I read my stuff right, instead of inserting (1/12)mL2 for momentum, I would insert (1/12)mL2 + md2?

A uniform rod of mass 0.62 kg is 6 m long. The rod is pivoted about a horizontal, fric- tionless pin at the end of a thin extension (of negligible mass) a distance 6 m from the cen- ter of mass of the rod. Initially the rod makes an angle of 48◦ with the horizontal. The rod is released...

1. A ball of mass m and radius R is both sliding and spinning on a horizontal surface so that its rotational kinetic energy equals its translational kinetic energy.What is the ratio of the ball’s center-of-mass speed to the speed due to rotation only of a point on the ball’s surface? The moment...

Ah, can't believe I didn't see that. Thanks a ton, let me give it a whirl.

Really sorry, I mistyped, don't know where I got that 2.04. Meant approximately 2.306. Again though, its the math beyond that that's causing me a problem. I read somewhere that the angle between the two balls will be 90 degrees, but I couldn't find any more info on it, could that be used to...

I can get that far...what I'm confused about is, from there you have to solve for phi in one of the equations, and then plug that into the other right? So, if I solve for phi in the first equation, I get arcsin([1.2sin(theta)]/-2.04). When I plug that into the other equation, I can't see what...

But can you do that since they go off at different angles? I solved for it using conservation of energy.. so .5(8)(2.6)^2 = .5(8)(1.2)^2 + .5(8)(x)^2 x = 2.306... no?

Well, that changes the value, so thanks for pointing that out, but it doesn't change the math :/ Thanks though

Thanks, I'll rework and see what I can do. I recalculated the second balls velocity to be 2.306512519, don't know how I screwed that up the first time through.

Homework Statement Consider an elastic collision (ignoring friction and rotational motion). A queue ball initially moving at 2.6 m/s strikes a stationary eight ball of the same size and mass. After the collision, the queue ball’s final speed is 1.2 m/s. Find the queue ball’s angle (theta)...

Awesome, thanks!

Hey, so I am teaching myself the C language to get a head start for a class I have to take later and am a little bit confused about something. I understand that if you call a function from within your int main, the variables you pass are actually copies of the originals and when the program...

Hey everyone, I have a kind of large problem. I am trying to input something in C, a number between 0 and 50,000, using scanf(). I understand how scanf generally works, and it does for the most part, but for some reason if the number I enter is greater than 37504, the program just stops...

Ok, I've drawn the diagram for the hanging mass, and with T being an upward force and mg being a downward force, ma being mg -T, but I am really confused about the mass on the table. Gravity and the normal force cancel each other out obviously, and are there two tension forces acting on it as well?

Homework Statement Part 1: A 17 kg block with a pulley attached slides along a frictionless surface. It is connected by a massless string to a 5.9 kg block via the arrangement shown (attached below). The acceleration of gravity is 9.81 m/s/s. Find the horizontal distance the 17 kg block...