Question

olivia bought new gym shoes to play volleyball because she kept slipping when she ran in her old shoes. how will the new soles help solve the problem?
by increasing her speed to increase friction
by adding surface roughness to increase friction
by improving aerodynamics to decrease friction
by increasing lubrication to decrease friction

Explanation:

Friction between the shoe - sole and the ground prevents slipping. Rougher surfaces have more friction. New soles likely have more surface roughness to increase friction and prevent slipping.

Answer:

by adding surface roughness to increase friction