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

A
he may increase his speed
B
his weight may be reduced
C
necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion.
D
no frictional force may be produced between the wheels and the axle
Solution:

The cyclist does so, the ground exerts the opposing frictional force which is directed in the direction he wants to make turn. So when a cyclist move in curved path a outward force act on him and to balance that force cyclist lean inwards to create force in opposite direction.

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