Kinematics Question 793
Question: A car of mass 800 kg moves on a circular track of radius 40 m. If the coefficient of friction it’s 0.5, then maximum velocity with which the car can move it’s [MH CET 2004]
Options:
A) 7 m/s
B) 14 m/s
C) 8 m/s
D) 12 m/s
Show Answer
Answer:
Correct Answer: B
Solution:
$ {v _{\max .}}=\sqrt{\mu rg} $
$ =\sqrt{0.5\times 40\times 9.8}=14m/s $
