The overriding problem with both theories of muscle growth, hypertrophy and hyperplasia, is that . A.
neither can be accepted as correct because muscles growth is difficult to study in humans
B.
neither one is theoretically possible
C.
neither has been studied by reputable scientists
D.
neither has been accepted by member of the fitness community

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?