Laws Of Motion Question 105

Question: A car turns a corner on a slippery road at a constant speed of $ 10m/s $ . If the coefficient of friction is 0.5, the minimum radius of the arc in meter in which the car turns is

Options:

A)20

B) 10

C) 5

D) 4

Show Answer

Answer:

Correct Answer: A

Solution:

$ v=\sqrt{\mu \ g\ r}\Rightarrow r=\frac{v^{2}}{\mu g}=\frac{100}{0.5\times 10}=20 $



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