Tension and compression are the two forces that act upon a bridge.
Two major forces that bridges deal with are compression and tension. Compression forces act to push or squeeze the material together, while tension forces act to pull the material apart. Bridges are designed to distribute these forces to ensure the structure can support the weight it carries.
Water pressure is one force that acts heavily on an arch dam. The beauty of an arch dam, however, is that all of the forces acting on the dam only serve to press against the arch, forcing the arch itself to accept this force in a way that only fortifies the arch.
Depends on the type of bridge. Suspension bridges, for example, have tension holding them up. All are acted upon by gravity, and to a lesser extent, the force of contact with the wind.
Some forces that can act upon a moving object include friction, air resistance, gravity, and applied forces like pushing or pulling. These forces can affect the speed, direction, and motion of the object.
friction
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Some Forces do not involve physical contact between the bodies on which they act. -Jauan Williams 3182163642
To provide dynamic support of a longitudinal arch of the foot, resisting those forces that act momentarly to spread the arch during walking and running.
The arch bridge spreads load (the weight of the bridge and the traffic on it) from the deck to the abutments (the supports at each end) and into the ground. This creates a lot of compressions.
Gravity and atmospheric pressure.
No resultant forces act upon it
Gravity hold the moon in orbit