Drive Air Impact
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Some noteworthy information about Drive Air Impact
Choosing Air Travel
Pros and Cons of Air Travel
Over the past few decades air travel has been becoming popular among people. One can attribute a number of reasons for this increase in popularity and these are convenience and safety. The following are some of the positive and negative factors involving air travel.
Disadvantage: Airplanes Cause Pollution.
The major shortcoming of air travel is the pollution caused by it. Emission of greenhouse gases by the airplanes into our atmosphere results in things like global warming. For those people that try to limit their impact on the planet this could be a serious drawback. Many airlines are becoming friendlier to the environment to prevent the effect of global warming. One of the ways in which this is achieved by many of these airlines is to retrofit winglet devices that make the aircraft fuel efficient. Apart from this the airlines invest a large sum of money to replace their old aircraft by fuel efficient aircraft.
Disadvantage: High Cost
One major disadvantage in traveling by air is its cost. In many instances it is inexpensive to travel by car to certain destinations instead of going by air. By flying on discount
airline it is possible to overcome this disadvantage of high cost. The main deciding factor for flying or driving is the type of deal you can get for airfare.
Disadvantage: Fear of Flying
There are a number of people who just don’t want to fly. If anyone has travelled in a flight which has hit an air pocket you will see that they have gone through a lot of rough weather due to turbulence and this can be rather terrifying.
Advantage: Speed of Travel
traveling by air is much faster as compared to other means of transportation as long as these places are connected by air. Flying between two destinations in United States which are connected by air takes a few hours whereas going by car between these destinations might take a number of days. This helps us to enjoy longer vacations because we have to spend less time traveling.
Advantage: Easy to Travel Long Distances
It is possible to cover long distances by flight in a reasonably short time whereas it is difficult to cover far off destinations by other modes of transportation. We can pretty much travel to any destination around the globe by air. Some of these flights might prove to be quite long but they are still much shorter than if you had to rely on alternative means of transportation.
Advantage: Safety
With regards to other forms of travel, air travel is considered to be one of the safest. We normally hear more about car accidents taking place as compared to air accidents. On the other hand you find that the occurrence of train accidents is also quite common. Air travel related disasters do happen but they occur much less frequently. For many people safety is the prime consideration for choosing air travel as compared to other form of transportation.
Choosing air travel is a personal decision, based on the factors discussed above along with a multitude factors not discussed here. For most travelers safety, speed of travel and cost are the over riding factors. As long as cost remains affordable air travel will continue to grow in popularity.
Questions on Drive Air Impact
If the golf club and the ball are in contact for 6.24 ms, what is the average force of impact?
A golf ball (m = 26.5 g) is struck a blow that makes an angle of 26.2⁰ with the horizontal. The drive lands 309 m away on a flat fairway. The acceleration of gravity is 9.8 m/s2. If the golf club and the ball are in contact for 6.24 ms, what is the average force of impact? Neglect air resistance. Answer in units of N.
ball travels for 309 m. So based on the assumption that the ball has v=0 at 309/2 due to neg. air resistance,
309/2 = 154.5
based on sine rule if you draw a triangle, the distance covered horizontally till v=0 is 154.5 and the distance travelled vertically upwards (max.) where v=0 is unknown. So to find this unknown, draw a right angled triangle with horizontal base being 154.5 and height being unknown. the hypotenuse is the speed of the ball upon impact = "u". Anyways, using sine rule, the max vertical ht reached is 388.75m. Then using v=u^2 + 2aS, v=0 and u = unknown velocity of ball, 2 x (-9.8ms^-2) x ( 388.75)
v = u^2 - 7619.44
v=0
u^2 = 7619.44
u = 87.23 ms^-1 the speed of the ball upon impact.
Now using F = m.a.
F = 0.0265 kg x (87.23 - 0)/0.00624 = 370N (Ans.)
initial speed = 0 ms^-1
final speed = 87.23 ms^-1
Time = 0.00624sec
accn = 13979.16667ms^-2 (natural for a small object like golf ball)
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