157k views
1 vote
HURRY FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The city is using sand trucks to place sand on the road during icy conditions. Which best explains the use of sand?

A. The sand increases friction by increasing surface area.
B. The sand increases friction by increasing roughness.
C. The sand decreases friction by increasing surface area.
D. The sand decreases friction by increasing roughness.

2 Answers

3 votes

Answer:

B.) The sand increases friction by increasing roughness.

Step-by-step explanation:

I had this question, hope this helped!

HURRY FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! The-example-1
User Ola Bini
by
7.5k points
3 votes
B. The sand increases friction by increasing roughness.
User Andrew Theken
by
10.0k points