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 $
