Question

A student designed a model of a car ramp. The student wants to cover the ramp so that the
car could stop after travelling a small distance. Which material would be best to cover the
ramp?
Select one:
Newspaper
Glossy paper
Sandpaper
Butter paper​

Answer 1

Answer:

sand paper  

Explanation:

it sokes water

Answer 2

Sandpaper would be best to cover the ramp.

• The student wants the car to get to a point and stop moving after covering a minimal distance.

• This is possible only if there's an external force acting against the car i.e., friction.

• Since a newspaper, glossy paper, and butter paper have a very smooth surface, the car will not stop itself.

• But sandpaper has a rough texture that could provide adequate friction.