Why is it important for scientist to use the international system of units

In my opinion it's like a one language, for example when you are trying to work with collaboration, and let's assume that the people around you are speaking in different language, it makes no sense if you all start to figure out what's going on because you can't understand each other... But if everyone speaks in one language, everything will work like a charm.

In this case scientist uses international system of units because, if he/she needs some help from others, he/she can easily ask others because everyone can understand those units that he/she is using

I hope it makes sense.

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

Because the dept in the ocean