Question

A car is travelling at 36 km per hour on a road if coefficient of friction between tires and road is 0.5 the minimum turning radius of car is

Answer 1

Ans is 20m

as solved in the attachment

Answer 2

Speed of car on the road , v = 36km/h = 36 × 5/18 = 10m/s

coefficient of friction between tires and road, $\mu$ = 0.5

Let radius of car is r

use formula, $v=\sqrt{\mu rg}$

where g is acceleration due to gravity.

10² = 0.5 × r × 10 [taken g = 10m/s² ]

r = 20m

hence, minimum turning radius of car is 20m