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Friction (from air resistance) stops them from falling faster and faster continually - instead they reach a maximum velocity and stay at that speed until they pull their parachute. Friction prevents them from plummeting to their death.
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∙ 13y ago
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What would the force of a skydiver with a mass of 70 kg and accelerates at 9.8 ms2 be?
The force is 686 newtons. (Force = mass x acceleration).
What is the Superlative and comparative to the word useful?
Most useful and more useful.
Why is it useful to rewrite a formula in terms of another variable?
to be more clear and not mix up your work. i suggest this all the way.
What is the Comparitive and superlative of useful?
more useful and most useful
What are the comparative and superlative of useful?
more useful, most useful
Is one way that friction is useful?
stopping cars Friction is useful to start a fire with sticks.
What are 2 way in which friction can be useful?
Brakes, and Shoes
What is an example of air friction?
a skydiver falling is affected by air friction or he would fall straight down in an instant
How can a skier achieve greater velocity than a skydiver?
If a skier is in a jump, then a skier and skydiver is pretty much the same thing. In general though, a skydiver has only air resistance, the skier has air resistance and friction with the ski-snow, so the skydiver has an edge on speed.
Describe 3 examples where low friction is not useful?
Friction is very useful but it has its own disadvantages. Friction causes wear and tear. Friction spoils the soles of our shoes. friction reduces speed This is all wrong some not useful types of friction are are when airplanes fly the friction causes heat that materials that will withstand which are costly.
Does brakes on a bicycle have a lot of friction or not much and is it useful or not useful?
Brakes are meant to have a lot of friction and it's useful.
Is friction useful?
yes friction is very useful because it help objects not to slide or slip
Is friction useful with computers?
No Friction Runes Computers
What type of friction causes a sky diver's acceleration to change as he fall?
A sky diver is falling through a Fluid with a measurable viscosity. The fluid is AIR. Pushing air molecules out of the way, and having them rub along the body of the skydiver's clothing causes friction (heat). This resulting friction on a human sized body results in a terminal velocity of approximately 124 MPH (200 KPH).
What are the differences between useful and harmful friction?
The type of friction that benefits in some or other way like smooth running of vehicles on the road is called Useful Friction whereas other wherein it becomes a causative factor for wear and tear or damage to the object in question.
When can friction not be useful in a boat?
the friction from pushing the hull through the water is not useful as long as you're travelling.
What three ways can friction be useful?
friction is useful for: you to walk It is needed for braking Can be used to produce heat
