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A car is moving along a circle with cons...

A car is moving along a circle with constant speed on an inclined plane as shown in diagram. Then friction force on car will be in horizontal direction at least at one point :

A

in portion 'AB' including point A and B

B

in portion 'BC' including point B and C

C

in portion 'CD' including point C and D

D

in portion 'DA' including point D and A

Text Solution

Verified by Experts

The correct Answer is:
B, C

Friction force acting on car will be resultant of the components shown in the diagram.
`f_(g)` and `f_(c)` are components of friction force that balance gravitational pull and provides centripetal force respectively.
The resultant of `f_(g)` adn `f_(c)` can be horizontal only for a point at BC adn CD and not for AB and BD.
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