Examples of balanced forces include the centripetal and centrifugal forces that keep the planets in fixed orbits around the sun, as well as weight and reaction forces that keep a book on a table. Balanced forces are forces that are equal in magnitude and opposite in direction.Continue Reading
The net force acting on a body when forces are balanced is zero. When forces cancel one another, the object the forces act upon is said to be in equilibrium. Balanced forces are what cause objects to tend to remain in their states of motion.
When the forces acting on a body are balanced, this does not necessarily mean the object is stationary. The object may be traveling at a constant velocity relative to a certain reference frame. However, the body cannot be accelerating or decelerating, as this would require the presence of a net force, according to Newton’s Second Law.
Weight and a corresponding reaction force from a solid surface are examples of balanced forces. A person standing on a floor is pulled downwards by the Earth’s gravitational field, causing them to exert a force equal to their mass times their acceleration on the floor. The floor reacts with an equal and opposite force, causing the person to remain in equilibrium.Learn more about Motion & Mechanics
A force table is a simple physics lab apparatus that demonstrates the concept of addition of forces on a two-dimensional field. Also called a force board, the force table allows users to calculate the sum of vector forces from weighted chains that pull a central ring.Full Answer >
In the study of vectors in physics, force tables allow for the application and manipulation of forces in a controlled and measurable way. A force table can be used to establish equilibrium for a given particle and then the addition of vectors can be observed and measured.Full Answer >
Some examples of frictional forces include the force between shoes and the ground when walking, the force between tires and the road while driving, and the force between a falling object and the air surrounding it. Many machines also involve the use of frictional forces.Full Answer >
Examples of six simple machines include windmills, slides, chisels, drills, blinds and seesaws. A windmill is a wheel and axle, slides are inclined planes, a chisel is a wedge, a drill is a screw, blinds are pulleys and a seesaw is a lever. Simple machines allow humans and animals to do work more easily by lessening the amount of force needed to move objects.Full Answer >