1. Tardigrade
  2. Question
  3. Physics
  4. A van is moving with a speed of 72 km/h on a level road. Where the coefficient of friction between its tyres and road is 0.5. The minimum radius of curvature, that the road must have, for safe driving of van is (g=10ms-2) :

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A van is moving with a speed of 72 km/h on a level road. Where the coefficient of friction between its tyres and road is 0.5. The minimum radius of curvature, that the road must have, for safe driving of van is $ (g=10m{{s}^{-2}}) $ :

EAMCETEAMCET 1999

Solution:

From the relation, $ \mu mg=\frac{m{{v}^{2}}}{r} $ $ \Rightarrow $ $ r=\frac{{{v}^{2}}}{\mu g} $ (Given: $ v=72\,km/h=72\times \frac{5}{18}=20\,m/s, $ $ \mu =0.5,g=10\,m/{{s}^{2}} $ ) $ =\frac{{{(20)}^{2}}}{0.5\times 10}=\frac{400}{5}=80m $