List five situations in which a greater amount of friction is beneficial. Overall, would a high or low coefficient of friction be helpful in these situations?

Since friction opposes movement, try to think of times in which you want movement to slow down or stop. Also, remember that the coefficient of friction is higher when there is more resistance between surfaces.

Question

List five situations in which a greater amount of friction is beneficial. Overall, would a high or low coefficient of friction be helpful in these situations?

Since friction opposes movement, try to think of times in which you want movement to slow down or stop. Also, remember that the coefficient of friction is higher when there is more resistance between surfaces.

zarkam21 · Answer

@Vocaloid

Vocaloid · Answer

one thing I can think of right off the bat is making a sharp turn, you need a high coefficient of friction as a centripetal force to keep the car from flying off the road or into the barrier

Vocaloid · Answer

using one of those grippy pot-holder things to keep the smooth metal from slipping out of your hands

zarkam21 · Answer

What about landing a plane

Vocaloid · Answer

yeah that's good, you need some friction between the wheel + the road to make the plane stop

zarkam21 · Answer

writing

zarkam21 · Answer

like between the paper and pencil

Vocaloid · Answer

yeah that's good, otherwise the utensil would just slide everywhere

as a last suggestion you could say walking, the rubber soles of shoes increase friction and keep us from sliding

zarkam21 · Answer

List five situations in which a lesser amount of friction would be beneficial. Overall, would a high or low coefficient of friction be helpful in these situations?

Think about situations in which you do not want friction to slow down or stop movement.

Vocaloid · Answer

sports that require smooth movement esp. ones with snow/ice like ice skating

Vocaloid · Answer

your body has fluids to reduce the friction between your joins

Vocaloid · Answer

when you're moving an object, you want less friction because friction decreases the net force and requires you to input higher force to get the same movement

zarkam21 · Answer

rowing a boat

Vocaloid · Answer

like between the boat and the water? I guess that works ^^

zarkam21 · Answer

flying a plane friction between air and the plane

Vocaloid · Answer

yeah that could work too, air resistance is technically a type of friction

zarkam21 · Answer

swimming,, water and skin

Vocaloid · Answer

good

zarkam21 · Answer

ugh i cant think of a 5th one

Vocaloid · Answer

1. snowboarding/ice skating
2. joints within the body
3. pushing/pulling an object 
4. airplane
5. swimming/boating