Recent content by Hanuda

Homework Statement So, basically there is a stick, mass m and length l, that is pivoted at its top end, and swings around the vertical axis with angular frequency omega. The stick always makes an angle theta with the direction of gravity. I am told there are 2 degrees of freedom (theta...

Just for the sake of argument, how would you go about doing it for angular momentum? For example, I get the following expression for angular momentum: I\omega=I\frac{\omega}{2} + MV_bL But when I work this out, I get: \frac{1}{6}mL\omega=MV_b But when I used linear momentum, I got...

As long as its correct conceptually, I'm on the right track. Thanks for your help!

But do I have the correct solutions for the velocity of the ball, and the mass M?

The LHS is the initial potential energy, yes. The RHS is the rotational kinetic energy just before the stick collides with the ball.

Hi Voko, why is that? I figured the potential energy of the rod when horizontal, is equal to the rotational kinetic energy of the rod when vertical, just before it strikes the ball. How is this not conservation of energy?

Homework Statement A stick of mass m and length l is pivoted at one end. It is held horizontal and then released. It swings down, and when it is vertical the free end elastically collides. Assume that the ball is initially held at rest and then released a split second before the stick strikes...