Question

Four similar boxes are labelled I, II, III, and IV. The masses of I and III are equal and the masses
of II and I are equal. The mass of box I is smaller than that of box II. Boxes I and II are placed
in a grass field and boxes III and I are placed on a marble floor. Which box requires the
maximum force to be moved?
Select one
I
II
III
IV​

Answer 1

Explanation:

really hard question

I am still confused