Question

Alexia and Melinda were trying to to move a very heavy box by pushing it across a room. Melinda suggested placing the box on rollers. How would rollers help?
A. Rollers would eliminate gravity making the box easier to push.
B. Rollers would increase friction making the box easier to push.
C. Rollers would add mass to the box making it harder to push.
D. Rollers would decrease friction making the box easier to push.

Answer 1

it was D. Rolllers would decrease friction making the box easier to push

Answer 2

welcome O_O

Answer 3

Thx!!