Question

what are the applications of force

Answer 1

In order for you to move force must be applied against something that resists the motion (friction implied) to achieve the motion.

Answer 2

hi

In order for you to move force must be applied against something that resists the motion (friction implied) to achieve the motion. 

For example to take a step forward, you need friction against the floor, your muscles have to shift your centre of gravity forward so that you are essentially starting to fall face first slightly. This act places a force on the ground in the backwards direction which coupled with friction (and your body mass being accelerated by gravity towards the Earth) resists your pushing backwards on it.  Your muscles then have to apply a variety of forces to your other leg (rotational and upwards) to lift your foot off of the ground. these forces are equally transferred and resisted through your other leg to the ground.

Practical applications of force are everywhere from rockets to cars to just about anything. Force can be in many forms to get some form of work done, be it lifting, pushing, electrical current, to atomic and sub atomic levels.