A road is properly banked for a car travelling at 60km/hr, how much friction is needed for a car going at 90km/hr?
(time sensitive...10 minutes)

Question

anonymous · Answer

Do you either the radius of the circle or the angle of the incline? I can't solve for it if I am missing one.

anonymous · Answer

because the time is in minute, lets convert the velocity to km/minute
so v1=1km/min
v2 = 1.5km/min
the friction needed will be f=m.a
the velocity's difference is 0.5
so a=0.5/10 = 0.05km/min^2 
friction needed = m x 0.05
CMIIW

anonymous · Answer

radius is 80 meters

anonymous · Answer

A road is properly banked for a car travelling at 60km/hr, how much friction is needed for a car going at 90km/hr? The radius of the curve is 80 meters.