Question

To push a heavy box up a ramp into a moving van, what could be used to decrease the force of friction?

Check all that apply.

A. Push harder on the box.
B. Put a lubricant between the ramp and the box.
C. Place another box on top of the one you are trying to slide,
D. Place rollers or wheels on the bottom of the box.​

Answer 1

D.Place rollers or wheels on the bottom of the box.

Answer 2

B. Put a lubricant between the ramp and the box

D. Place rollers or wheels on the bottom of the box