Hello,
I was wondering if anybody has experience with charring wood that has been primed with pore filler. I'm buying wood that has had the mentioned treatment done for a project, and I want to char it. Does anybody know if I can char the pore filled wood? Is it possible? Is it going to affect the end result in any way?
Thanks in advance,
JxB
P.S. It is Rengas wood
A construction worker takes a 55-kg board of length 6.0 m and places it so that 2.0 m are extending out beyond the edge of a building. The worker has a mass of 40-kg. How far out beyond the edge of the building can the worker walk before the board begins to rotate? Assume that the edge of the building is the pivot point.
I came to the conclusion that the board would start to rotate at 2.51 m, so he could walk all the way to the end of the board.
55/3 = 18.33
(4m)(36.67kg) = x(40kg + 18.33kg)
x = 2.51 m
The answer key does the following:
r(40kg) = (1m)(55kg)
r = 1.4m
where does the 1 meter come from, and isn't the weight of the board divided between each side of the pivot point (55/3*2 and 55/3)?
Thank you to anyone who helps!