Kinematics Question 781
Question: The coefficient of friction between the tyres and the road is 0.25.The maximum speed with which a car can be driven round a curve of radius 40 m without skidding it’s (assume $ g=10ms^{2} $ ) [Kerala (Med.) 2002]
Options:
A) $ 40ms^{1} $
B)$ 20ms^{1} $
C) $ 15ms^{1} $
D)$ 10ms^{1} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ v=\sqrt{\mu rg}=\sqrt{0.25\times 40\times 10}=10m/s $
