what is resultant force
Answers
Resultant Force and Motion
Once you know the resultant force, you can use it to predict how the object will move (or not move). Way back in the 1600s, Sir Isaac Newton wrote a book called Mathematical Principles of Natural Philosophy, and in this famous book, he explained the laws of motion, which demonstrate the effect of forces on motion. There are three in total, but the first two laws are especially important for understanding how the resultant force will affect the motion of our object.
The First Law of Motion: If the resultant force acting on an object is zero, it will not change its motion in any way (either the speed or the direction).
The Second Law of Motion: If the resultant force is NOT zero, the object will accelerate in the direction of the net force, and the acceleration will be directly proportional to the resultant force and inversely proportional to its mass.
Taken together, these two laws explain what will happen in any situation in which there is a resultant force.
Some Example Problems
Let's look at the tug of war problem one more time and see if we can put all this together and figure out which way the rope will move:
In the beginning of the tug of war, the team on the left applies a force of 1600 N to the rope, and the team on the right also applies a force of 1600 N to the rope. What happens to the rope?
Answer:
In physics and engineering, a resultant force is the single force and associated torque obtained by combining a system of forces and torques acting on a rigid body. The defining feature of a resultant force, or resultant force-torque, is that it has the same effect on the rigid body as the original system of forces.
Explanation:
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