Kinematics Question 754

Question: An unbanked curve has a radius of $ 60m $ . The maximum speed at which a car can make a turn if the coefficient of static friction it’s 0.75, it’s[JIPMER 1999]

Options:

A) 2.1 $ m/s $

B)14 $ m/s $

C) 21 $ m/s $

D)7 $ m/s $

Show Answer

Answer:

Correct Answer: C

Solution:

$ {v _{\max }}=\sqrt{\mu rg}=\sqrt{0.75\times 60\times 9.8}=21m/s $



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