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Re: [Phys-l] real-world mechanics problem

Constant a: V^2 = V^2 (initial) + 2ax

Conservative field; path independent, and Work-Energy Principle.


Pendulum @ A, V (initial) = 0 At BDC V = same as mass free fell from same height.
Therefore, V^2 (BDC) = 2gh

h = L (1 - cosA) ~= L A^2 / 2

V^2 = 2g(LA^2/2)
V = A sqrt(gL)

bc

On 2011, Feb 05, , at 10:31, Bob Sciamanda wrote:

?But I still don't see what kinematics gave you :

X dot = sqrt.(g*L) A

Please show youir work :-)