- #1
jimmyboykun
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Homework Statement
On a highway curve with radius 55m, the maximum force of static friction that can act on a 795kg car going around the curve is 8740N. What speed limit should be posted for the curve so that cars can negotiate is safely?
Homework Equations
ƩF=ma, a=v^2/r
The Attempt at a Solution
8740N=795kg(v^2/55m)
8740N= 4375m*kg(v^2)
0.200m/s= v^2
v=0.144m/s
it looks like I performed my math correctly, but I need a second opinion. The solution that I solved does not appear in the answer choices of my practice exam.