Thanks to this equation, we can determine the position and velocity of an object at any time in the past or future. A force will cause a change in velocity and, likewise, a change in velocity will generate a force. Where F is the force, m is the mass of the object and a is its acceleration (change in velocity).
This is described in the following equation: In the simplest terms, an object will move further and faster the harder it is pushed or pulled. This law explains how the velocity of an object changes when an external force is applied. If the velocity is zero, the object remains at rest. In other words, if no net force acts on an object (if all external forces cancel each other out) then a moving object maintains a constant velocity. So, the velocity (speed and direction of travel) of the object will change because of that external force. The key point is that if an external force is applied it was size and direction. This push or pull is called a ‘force’ in physics If an object is moving, it will not stop or change direction unless something pushes or pulls it. If an object is stationary (not moving), it will not start moving by itself. Isaac Newton published his three laws of motion in 1687.
