contestada

Riley is doing an experiment working with friction. He wants to find two ways to modify an object that could increase or decrease the same type of friction.
Which methods could he use to perform his experiment?

Respuesta :

Riley can either change the surface area of the object or can change the slipperiness of the material.
mariepflug04

Answer:the answer is B increasing the surface area and areodynamic design. Just took the test .

Explanation: