The maximum speed of a car on a road turn of radius $30\,m$; if the coefficient of friction between the tyres and the road is $0.4$; will be ........ $m/s$
The maximum speed of a car on a road turn of radius $30\,m$; if the coefficient of friction between the tyres and the road is $0.4$; will be ........ $m/s$
$9.84$
$10.84$
$7.84$
$5.84$
The maximum speed of a car on a road turn of radius $30\,m$; if the coefficient of friction between the tyres and the road is $0.4$; will be ........ $m/s$
$v = \sqrt {\mu rg} = \sqrt {0.4 \times 30 \times 9.8} = 10.84\;m/s$
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