The path taken by a flying object in motion on the surface of the Earth is called a parabola. A parabola is a symmetrical arc, and the trajectory of flying objects with negligible air resistance in a gravitational field, as on the surface of the Earth, follows this path.Know More
Throwing an object upward on the surface of the Earth introduces two forces on the object — an upward force that is opposed by the force of gravity and a forward force. Eventually, the gravitational force will overcome the upward force. The arc of the object's path is a parabola.
The first research on parabolic trajectories was done in the early 17th century by noted Italian physicist and mathematician Galileo Galilei; some of his initial experiments involved rolling uniform balls along inclined planes.Learn more about Motion & Mechanics
Friction is a force that opposes motion, so it is unhelpful in all situations where the motion of an object is desired. A by-product of friction is that energy is wasted in the form of heat, which can cause problems in temperature-sensitive environments.Full Answer >
Unbalanced force occurs when two forces acting on an object are not equal in size, causing a change in motion. Unbalanced forces cause a still object to move or moving objects to slow down or speed up, stop or change direction.Full Answer >
The law of inertia states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. The law of inertia is sometimes referred to as Newton's first law of motion.Full Answer >
Energy of motion is the energy an object possesses due to its motion, which is also called kinetic energy. This means that the object, which has energy of motion, can do work on any object it hits.Full Answer >