The problem involves determining the velocity of a pole vaulter upon hitting the ground after reaching a height of 6 meters, using gravitational acceleration without air resistance.
There is an ongoing exploration of different methods to approach the problem, including energy methods and kinematic equations. Some participants express uncertainty about the calculations and seek validation of their results.
Participants note constraints such as the assumption of no air resistance and the use of a simplified gravitational constant. There are also references to class attendance and external factors affecting understanding.
denverdoc said:Well, then you need another approach, maybe attending class more regularly?
I'm not being snide but for the life of me cannot think of any other method.
The one option which might not be considered strictly as kinematics is by using energy: the potential and kinetic energies under these conditions will be constant. So develop an eqn that uses both. But given the data, this is the only approach.
If you use an alternate approach (and yes, there is one) using the basic kinematic equation of motionwhiteruskii said:Attending class would be wonderful...last week was beyond my control
anyways, not to go off on a tangent, using mgh=1/2mv^2, I canceled out mass, since it's just a multiplier to both, and got an answer of approximately 10.95. Does that seem about right?