Force multiplied by time is known as impulse. Impulse is a concept in physics that relates to the change in momentum of an object when a force is applied over a specific period of time.
To break it down further, force (measured in newtons) applied for a certain duration (measured in seconds) results in an overall change in momentum. The formula for impulse can be expressed as:
Impulse = Force × Time
In practical terms, if you push an object with a certain force for a certain amount of time, you are imparting impulse to that object, which can increase its velocity and momentum. For example, if a baseball bat hits a ball, the force of the bat exerted over the brief moment in contact with the ball constitutes an impulse, propelling the ball forward.
Impulse is also critical in understanding collisions. When objects collide, the impulse experienced by each object is equal and opposite, according to Newton’s third law of motion. This principle is fundamental in analyzing and predicting the outcomes of collisions in sports, vehicle crashes, and other dynamic systems.