Question

A motor cyclist riding at `36kmh^(-1)` has turn a corner. Find the least radius of the curve, he should follow for safe travelling, if the coefficient of friction between the tyres and the road is `0.2`.
A. 10 m
B. 25 m
C. 50 m
D. 100 m

Answer 1

Correct Answer - C
For safe circular turn
`v=sqrt(murg)`
`rArr" "r=(r^(2))/(mug)rArrr=((10)^(2))/(0.2xx10)=50m`