In physics, the three types of acceleration are changes in speed, direction and both simultaneously. The word "velocity" is often used in place of speed. A person can calculate the acceleration of an object by determining its velocity and the length of time it accelerates.
When a car makes a sudden turn, it experiences an increase in acceleration, even if its speed remains constant. This increase in acceleration can be felt through the jerking effect that is imposed on the passengers' bodies. In addition to regular acceleration, an item can experience negative acceleration, which is characterized by a decrease in speed. The intended direction of an object may remain positive regardless of its velocity rate.Learn More
Every forklift maintains its balance while carrying a load by using a cantilever system positioned on a fulcrum, which is the machine's front wheel axle. The cantilever system is similar to a simple teeter-totter, a device that also relies on a fulcrum to operate.Full Answer >
The angle of pull is used to describe the angle of any muscle and the bone to which it's attached. Orthopedists and physical therapists use this term.Full Answer >
A machine is any device that transmits mechanical energy or power into useful work. The simplest machines redirect an applied force or convert kinetic energy into potential energy. More complicated machines are powered by electricity or fuel and use moving parts and electronic circuitry to complete complex tasks.Full Answer >
When a leaf falls, it is being accelerated by gravity to the ground. It is opposed, however, by air resistance, also known as the drag. The net force on a leaf is calculated by subtracting its weight from its drag.Full Answer >