A bike is going on a concave upward bridge with a constant velocity v. find the direction of normal(N) and centripetal force when the body reaches middle of the bridge?

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Solution

The correct option is B

You know how to draw free body diagram by now.

So let's see at middle of bridge

So normal is pointing upwards. Now if a particle goes in a circle then it has a centripetal acceleration that always points towards the centre of the curvature, which is facing upward.

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