ElectricPavlov

x = x0 + v0t + 1/2 at^2             

f _friction  = u m g                       (using g to avoid confusion)

f_f = ma    and   = umg 

         a = u g    

vf = vo + at

 0 = 6  + u g t

 0 = 6 - .1 (9.81) t       t = 6.12 sec

x = x0 + vo t - 1/2 at^2

  =  0   + 6(6.12) - 1/2 (.1)(9.81)(6.12)^2  = 18.35    meters   

NOW ---- off to fix those leaks.......

Thanx Troller !      Yah....I did not look very far in to this problem....I suspected 'm' may cancel out in there, but my pucked brain doesn't have time right now...... water pipes are leaking ......grrrrr! 

~EP

It will still be 4th degree

ex    x^4  -x^2  + x          -     (x^2 + x)

    = x^4 -2x^2     Still 4th degree

Here is a picture

I think 80 is the hypotenuse......

total distance / total time = average        time = distance/rate

d = distance

d / 7  + d/11=   2d /average

1/7 + 1/11 = 2/average

average = 2 / (1/7 + 1/11) = 154/18 = 77/9 m/hr =   8.56  m/hr

S = a / (1-r)

16 ( 1 -1/5) = a₁ = 12.8

80 sin 11 = 15.26 units         

Force of friction =   coefficient of friction * NORMAL force      Normal force = m a     = mass * 9.81 m/s^2

    were you not given the mass of the hockey puck?

The number 42 is, in The Hitchhiker's Guide to the Galaxy by Douglas Adams, the "Answer to the Ultimate Question of Life, the Universe, and Everything", calculated by an enormous supercomputer named Deep Thought over a period of 7.5 million years. Unfortunately, no one knows what the question is.

    NOW we know what the question is !