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Yes, it is really helpful as it causes heat which burns the snow (a little) and the ski or sled actually runs on a layer of water. If there was no friction, you would not move.
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∙ 11y ago
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When is friction helpful in your house?
when you use matches
When is decreased friction helpful?
Decreased friction is very helpful in working machinery, because friction causes wear and tear.Mainly its very helpful in moving parts. Decreased friction is also helpful in electric cables and wires, as reduced friction reduces energy loss via heat.
How friction can be both helpful and unhelpful?
On a car, friction is useful on the tyres and brakes. It is not required for the parts that rotate.
2 ways that friction is helpful?
Car BreaksBike Breaks
Why is friction harmful while driving a car in the winter?
Friction can be harmful or helpful when driving, no matter what time of year. For instance it is helpful when breaking and it is harmful between bearing surfaces. The loss of friction between the tyres and the road during winter can be disastrous.
What do you call the runners on a sledge?
slipper
What helped move pyramid stones?
The inclined plane in the form of a ramp. A sledge with narrow runners which reduced friction. Friction was further reduced by pouring a lubricant such as water or oil under the runners. The motive force was the brute force of thousands of naked slave labourers.
What does the word sledge mean?
A sledge is a trailer which runs on runners rather than wheels.
What happens when you are sledging down a snowy slope and you run into a grass path What would happen to the speed of the sledge and why?
The coefficient of friction for sledge runners on grass is much higher than on ice, so there will be a large and sudden increase in the retarding force. The deceleration will be this force divided by the total mass. If the rider doesn't hang on he/she will tend to continue at the latest velocity (ie thrown forward off the sledge).
What is a flat-bottomed sledge called starting with t?
Toboggan is the word you are looking for. A toboggan is a simple sledge (or sled). It has no runners or skis on the underside and is just used on snow.
When friction is not helpful?
Friction can be helpful and not helpful it is not helpful when you are running because it slows you down hope that'll help!!!! ;)
Where friction is helpful?
Friction is helpful between car tyres and roads for grip. It is also sometimes used for heating as friction generates heat.
What is the force that reduces a runners speed sliding into home plate?
Friction
What places don't you need friction on a sleigh?
Between the runners and the snow.
What is the helpful way friction affects a car?
By using kinetic friction
The friction between the bristles of your toothbrush and the surfaces of your teeth is an example of?
Helpful Friction.
When is friction helpful in your house?
when you use matches
