Posted by Sarah on Monday, June 22, 2009 at 1:36pm.
Didn't I go thru this with you before? Set initial KE equal to mu*mg*distance.
If you don't understand that, explain. I can't read minds.
sorry about that...
I got your 1/2 m v^2=mu*mg*distance
so I did 1/2(61kg)(12.0 m.s)^2 = mu * (what do i put for mg) and distance is 184 m right?
m is mass, itis given as 61kg, g is 9.8m/s^2
so its the 61(9.8)
so then the final formula would look like
1/2(61kg)(12.0 m.s)^2 = mu * (61kg)(9.8m/s^2)(184m)
solve for mu right?
correct.
i did the left side of the equation = 4392
and the right side i got 109995.2
so i did 4392/109995.2 = .039929
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