Physics
Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2

1.4 km/s
14 m/s
0.14 m/s
140 m/s

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Physics
A cyclist leans inwards when he is negotiating a curve so that

His weight may be reduced
He may increase his speed
No frictional force may be produced between the wheels and the axle
Necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion.

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