Two identical cars A and B are moving at 36kmph. A goes on a bridge, convex upward and 'B' on concave upward. If the radius of curvature of bridge is 20m, the ratio of normal forces exerted on the cars when they are at the middle of bridges (g= 10 ms^(-2))

Two identical cars A and B are moving at 36kmph. A goes on a bridge, c

1.	Two identical cars A and B are moving at 36kmph. A goes on a bridge, convex upward and 'B' on concave upward. If the radius of curvature of bridge is 20m, the ratio of normal forces exerted on the cars when they are at the middle of bridges (g= 10 ms^(-2))
Answer» `1: 3` `1: 2` `2: 3` `1: 5` ANSWER :A