A pole vaulter goes 6m in the air. What is the velocity when he hits the ground?
No air resistance, just g=9.8m/s^2
mgh = 1/2mv^2
Does an answer of 10.95 seem right? (I used 10m/s/s for gravity)
Attending class would be wonderful...last week was beyond my controlWell, 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 motionAttending 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?