A student is trying to move an object by pushing it. When the student applies 20 Newtons of force to the object, it does not move. When the student applies 40 Newtons of force to the object, it moves.
Which of the following identifies the greatest amount of force the object could be applying to the student?
Question 2 options:
a.20 Newtons
b.30 Newtons
c.40 Newtons
d.50 Newtons