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  4. A car of mass 1000 kg moves on a circular track of radius 20 m. If the coefficient of friction is 0.64, then the maximum velocity with which the car moves is

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Q. A car of mass 1000 kg moves on a circular track of radius 20 m. If the coefficient of friction is 0.64, then the maximum velocity with which the car moves is

JIPMERJIPMER 2013Laws of Motion

Solution:

$v_{max} = \sqrt{\mu rg} = \sqrt{ 0.64 \times 20 \times 9.8}$
$=11.2 \, m \, s^{-1}$