The design of a new road includes a straight stretch that is horizontal and flat
ID: 2136101 • Letter: T
Question
The design of a new road includes a straight stretch that is horizontal and flat but that suddenly dips down a steep hill at 16? .Part A The transition should be rounded with what minimum radius so that cars traveling 89km/h will not leave the road ? The design of a new road includes a straight stretch that is horizontal and flat but that suddenly dips down a steep hill at 16? .
The design of a new road includes a straight stretch that is horizontal and flat but that suddenly dips down a steep hill at 16? .
The design of a new road includes a straight stretch that is horizontal and flat but that suddenly dips down a steep hill at 16? .
The design of a new road includes a straight stretch that is horizontal and flat but that suddenly dips down a steep hill at 16? .
Part A The transition should be rounded with what minimum radius so that cars traveling 89km/h will not leave the road ? Part A The transition should be rounded with what minimum radius so that cars traveling 89km/h will not leave the road ? Part A The transition should be rounded with what minimum radius so that cars traveling 89km/h will not leave the road ? Part A The transition should be rounded with what minimum radius so that cars traveling 89km/h will not leave the road ? Part A The transition should be rounded with what minimum radius so that cars traveling 89km/h will not leave the road ? Part A The transition should be rounded with what minimum radius so that cars traveling 89km/h will not leave the road ? The design of a new road includes a straight stretch that is horizontal and flat but that suddenly dips down a steep hill at 16? .
Part A The transition should be rounded with what minimum radius so that cars traveling 89km/h will not leave the road ?
Explanation / Answer
the slope is 16 deg.
F = mg*cos(16 deg)
Fcent = mv^2/r
So at minimum radius F = Fcent ==> r = v^2/(g*cos(16 deg)) (answer)
(remember v = 89/3.6 m/s)
r=
64.8133347763 m