Recent content by holdenthefuries

Homework Statement A sheet of aluminum of thickness .01 m lies in a parking lot. A wind blows over the top of the sheet. What is the minimum velocity that will cause the sheet to begin to rise: Assume the density of air is 1.18 kg/m^3 and aluminum is 2700 kg/m^3. Homework Equations...

And as a side... I have calculated Vf in symbolic form to be: 60sinØ/(sin(Ø+∆Ø) If I could just figure out what theta and time were, I'd be gold! Any hints to this would be perfect. Thanks!

Homework Statement Consider the tetherball shown: At t=0, the ball, of mass m, is moving in a horizontal circle with velocity Vo and has length Lo. The cord is now slowly drawn in until it has length Lo/3. Take Vo = 20 m/sec. Lo = 1.5 m m = 2 kg. What is the final velocity of the ball...

Tips for making this easier: Remember that ultimately the mass is constant (since the M comes from the force being applied) and don't try and trick yourself into thinking that it is a variable in the end. In a rocket formula with linear air resistance, it is helpful to compare your answer to...

Problem: A rocket is launched vertically upward. The rocket has a mass Mr and carries Mo of fuel. The fuel burns at a constant rate (ß) and leaves the rocket at speed Ve relative to the rocket. Assume constant gravity (9.8m/sec^2). There is an air resistance given by F(a) = -kV. Where V is the...