Three identical cars A, B and C are moving at the same speed on three bridges. The car A goes on a plane bridge, B on a bridge convex upward and C goes on a bridge concave upward. Let FA,FB and FC be the normal forces exerted by the cars on the bridges when they are at the middle of bridges.

Three identical cars A, B and C are moving at the same speed on three

1.	Three identical cars A, B and C are moving at the same speed on three bridges. The car A goes on a plane bridge, B on a bridge convex upward and C goes on a bridge concave upward. Let FA,FB and FC be the normal forces exerted by the cars on the bridges when they are at the middle of bridges.
Answer» Three identical cars A, B and C are moving at the same speed on three bridges. The car A goes on a plane bridge, B on a bridge convex upward and C goes on a bridge concave upward. Let $F_{A}, F_{B} a n d F_{C}$ be the normal forces exerted by the cars on the bridges when they are at the middle of bridges.

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Three identical cars A, B and C are moving at the same speed on three bridges. The car A goes on a plane bridge, B on a bridge convex upward and C goes on a bridge concave upward. Let FA,FB and FC be the normal forces exerted by the cars on the bridges when they are at the middle of bridges.

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