A cyclist moving on level circular path of radius 4 m with speed of 4.9 m/s takes sharp turn. Co-efficient of friction between tyre and road will b e .......

A cyclist moving on level circular path of radius 4 m with speed of 4.

1.	A cyclist moving on level circular path of radius 4 m with speed of 4.9 m/s takes sharp turn. Co-efficient of friction between tyre and road will b e .......
Answer» 0.51 0.41 0.71 0.61 Solution :Letcyclistmoveswith SPEEDV oncircularpathof RADIUSR andtakesharpturnlet co-efficientof frictionbe `MU` ` mu = tan THETA= (v^(2))/(rg )` `mu = 0.61`