Sports are important to a lot of people because they can bring communities together. People who have nothing else in common can bond over playing a game together or routing for the same team.
Friction is important for all sports.Without it it becomes really hard to accelerate or deaccelerate.For example a 100m sprinter.It would be great for him if there wasnt any air resistance (as long as he can breath).But he needs friction on the floor to push himself forward.however friction is less useful in hockey, skiing, and almost all types of boarding(snowboarding, wakeboarding, kneeboarding, sandboarding).
Drag is useful in aeronautics and automotive design to reduce air resistance and improve fuel efficiency. In sports such as cycling and skiing, minimizing drag can increase speed and performance. Drag is also important in the design of structures to ensure stability and reduce wind loads.
There is not a sport in which friction is not useful. In hockey, for example, there seems to be no need for friction. However, in order to get moving or stand at all, the players rely of the friction between their skates and the ice. The friction between their skates and the ice also creates a thin layer of water while they skate, allowing them to glide over the ice. even chess relies on friction so the pieces do not move off the board.
Momentum is useful in various situations, such as sports like football and basketball to maintain a continuous drive towards scoring. In investing, momentum can be used to identify trends in stock prices for potential profitable trades. Additionally, momentum is valuable in physics to analyze collisions and understand the motion of objects.
A javelin is typically used as a throwing weapon in track and field competitions or hunting. Its design allows for long-distance throwing with accuracy, making it useful in sports or for hunting prey from a distance.
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knee injuries
Your knee
This is useful in sports like soccer, hockey, lacrosse, basketball, football and others.
Photo finishing is considered useful as it removes the element of contestability from sports such as horse racing or Olympic sports, where large amounts of money are placed on speculative gambling.
to figure out what you heart rate is
The internet is useful in health, academic research, transport, sports, business and in entertainment.
Sports Authority carries many useful exercise equipment options but does not carry the bowflex xtreme.
Sports can make you fit and games can make you relax
The most common sport is soccer. It is played in nearly every country. Lots of sports are useful. Running is very useful before breakfast. There is not a most useful sport because lots are for different things.
they play baseball softball hockey and tennis.
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