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∙ 9y agoThe thrust force produced by the airplane's engines must be greater than the drag force acting against it in order to overcome drag and maintain forward motion. This allows the airplane to continue moving through the air and generate lift to stay aloft.
A rocket has to overcome the force of gravity in order to move skyward. This force pulls the rocket downward and needs to be overcome by the thrust generated by the rocket's engines in order to achieve lift-off.
In a machine, the effort force you apply is used to overcome a resistance force. The resistance force is the force that the machine acts against in order to perform work.
The force to be overcome by a simple machine is called the input force or effort force. This is the force applied to the machine in order to make it work against the resistance force or load.
That is referred to as the "load" or "force" that needs to be overcome in order to achieve a desired movement or outcome.
The force applied to a lever is called the effort force. This force is used to overcome resistance at the load end of the lever in order to perform work.
Thrust is the produced force of the aircraft that propels the aircraft forward in order to overcome drag. Drag is the natural force of the air that resists the motion of the aircraft.
A rocket has to overcome the force of gravity in order to move skyward. This force pulls the rocket downward and needs to be overcome by the thrust generated by the rocket's engines in order to achieve lift-off.
Airplanes have to overcome more than just one force in order to fly. Gravity, of course, is the most obvious one. Drag is another one. The silhouette/cross section/wetted area which the airplane presents to the wind is one obvious form of drag. Then there's induced drag, the friction of the air over the aircraft skin, which increases as the speed of the aircraft increases. There are also incidental sources of turbulence that contribute to induced drag. All of these are overcome with clever design and lots of power.
In a machine, the effort force you apply is used to overcome a resistance force. The resistance force is the force that the machine acts against in order to perform work.
The force to be overcome by a simple machine is called the input force or effort force. This is the force applied to the machine in order to make it work against the resistance force or load.
That is referred to as the "load" or "force" that needs to be overcome in order to achieve a desired movement or outcome.
The force applied to a lever is called the effort force. This force is used to overcome resistance at the load end of the lever in order to perform work.
The force opposing the buoyant force is the force of gravity. Gravity pulls objects downward, creating a force that must be overcome by the buoyant force in order for an object to float in a fluid.
In a machine, the effort force tries to overcome the resistance force. The effort force is applied to the machine in order to move or lift the resistance force, which is the force that opposes the motion or lifting action. The difference between the effort force and the resistance force determines the mechanical advantage of the machine.
In level steady flight, lift force equals weight, and thrust force equals drag force. This balance of forces keeps the airplane in level flight without ascending or descending.
Hydrogen bonds between the complementary base pairs must be overcome to separate the two DNA strands during replication. Breaking these bonds allows the strands to unwind and separate, enabling DNA polymerases to replicate each strand.
Frictional force resists movement. In order to set an object into motion (or accelerate an already moving object), the force of friction must be overcome.