About twenty percent of the national football league weighs more than 300 pounds. at this weight, their body mass index (bmi) places them at grade 2 obesity ,which is one step below morbid obesity. determine the mass of a 300 pound (1330) n football player

For a thing in free fall, so that gravity is the lone force performing on it, then the computation for weight shadows from Newton's second law.

 

So we will use the formula: F = ma

Where:

F is force net external

M for mass

A for acceleration

 

Since the force is given already, we need to solve for the mass:

F = MA

1330N = M * 9.81 m/s^2

1330N/9.81 m/s^2 = M

M = 135.57 kg or 136 kg

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.