A car is moving on a horizontal curved road with radius 50 m . The approximate maximum speed of car will be, if friction between tyres and road is 0 . 34 . [Take g = 10 m s - 2 ]

Question

TestHub · Accepted Answer

For a car moving with uniform speed along a circular track, the centripetal acceleration is provided by the frictional force acting radially inwards. Therefore, applying Newton's second law along radial direction,

$μ m g = \frac{m v^{2}}{r}$

$\Rightarrow v = \sqrt{μ r g}$

$= \sqrt{0.34 \times 50 \times 10}$

$\approx 13 m s^{- 1}$

Physics - Circular Motion Question with Solution | TestHub

Options:

Doubts & Discussion