Laws Of Motion Question 109
Question: Assuming the coefficient of friction between the road and tyres of a car to be 0.5, the maximum speed with which the car can move round a curve of 40.0 m radius without slipping, if the road is unbanked, should be[AMU 1995]
Options:
A) 25 m/s
B) 19 m/s
C) 14 m/s
D) 11 m/s
Show Answer
Answer:
Correct Answer: C
Solution:
$ v=\sqrt{\mu gr}=\sqrt{0.5\times 9.8\times 40}=\sqrt{196}=14\ m/s $
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