Final answer:
Wearing gloves increases the friction between the hands and the bat by increasing the coefficient of friction.
Step-by-step explanation:
Wearing gloves increases the friction between the hands and the bat because it increases the coefficient of friction (μ) between the two surfaces. The coefficient of friction represents the amount of frictional force between two surfaces in contact. When wearing gloves, the material of the gloves provides additional surface roughness, which increases the coefficient of friction and thus increases the frictional force between the hands and the bat.