Question

A flat curved road on highway has radius of curvature 400 m. A car rounds the curve at a speed of 24 m/s. The minimum value of coefficient of friction to prevent car from sliding is ______.

(take g = 10 m/s²)

विकल्प

• 0.144

• 0.376

• 0.544

• 0.100

Answer 1

A flat curved road on highway has radius of curvature 400 m. A car rounds the curve at a speed of 24 m/s. The minimum value of coefficient of friction to prevent car from sliding is 0.144.

Explanation:

R = 400 m, v = 24 m/s

`"v"^2/"R"=mug`

`mu="v"^2/"Rg"=(24xx24)/(400xx10)=144/1000=0.144`