3] a student has 500 identical, rectangular sheets of paper. the mass of 1.0 square m of the paper is 0.080kg. a] using a meter rule, she measures the length of one sheet of paper and it's width. the length is 0.300m and the width is 0.210m. [i] calculate the mass of one sheet of paper. [ii] the student makes a single pile of the 500 sheets of paper. with a meter rule, she measures the height of the pile. the height of the pile is 0.048m calculate the density of the paper. b] a second student has only 5 sheets of the same type of paper. suggest how this student determines the density of the paper to a similar accuracy. additional apparatus may be used.

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.

The speed was not exceeded so it was slow