Laws Of Motion Question 392

Question: What is the minimum stopping distance for a vehicle of mass m moving with speed v along a level road. If the coefficient of friction between the tyres and the road is $ x=40cm $

Options:

A) $ \frac{v^{2}}{2\mu g} $

B) $ \frac{2v^{2}}{\mu g} $

C) $ \frac{v^{2}}{\mu g} $

D) none of these

Show Answer

Answer:

Correct Answer: A

Solution:

$ 0^{2}=V^{2}-2\mu gs $

$ \Rightarrow s=\frac{V^{2}}{2\mu g} $ [a].



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