A turn of radius 100 m is banked for a speed of 20 m/s
(a) Find the banking angle
(b) If a vehicle of mass 500 kg negotiates the curve find the force of friction on it if its speed is – (i) 30 m/s (ii) 10 m/s
Assume that friction is sufficient to prevent skidding and slipping.
[Take `"tan" 22^(@) = 0.4 , "sin" 22^(@) = 0.375 , "cos" 22^(@) = 0.93 , g = 10 ms^(-2)`]

Answer

(a) `22^(@)`
(b) (i) 2315 N , 1389 N