Which of the following people is the least affected by friction?
A
a person trying to slide a box across grass
B
a person trying to slide a box across sand
C
a person trying to slide a box across ice
D
a person trying to slide a box across concrete
C - a person trying to slide a box across ice.
Ice has a low coefficient of friction compared to grass, sand, and concrete, so it would require less force to slide the box across ice.