Force As A Vector:
Force is a vector quantity. It can have any magnitude, from the blast of powder in cannon, from the flick of a finger to a swift leg kick, or the thrust of a rocket engine. The force always has a defined direction also. You can fire a pop-gun in any direction you desire (and bear the consequences when you make a bad choice). The vectors are generally symbolized using boldface letters of the alphabet. A force vector, for illustration, can be represented by the uppercase boldface letter F.
At times the direction of a force is not significant. In such illustrations, we can speak of the magnitude of a force vector and represent it as an upper-case italicized letter F. Standard international unit of force magnitude is the newton (N) that is the equivalent of a kilogram-meter per second squared (kg . m/s2). Assume that the brick in your spacecraft has a mass of 1 kg and that you push against it with a force of 1 N for 1 s and then let leave. The brick will then be traveling at a speed of 1 m/s. It will have left from stationary (with respect to its surroundings) to a speed of 1 m/s, that might seem instead slow unless it hits someone.