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What is the principle of Life-Jacket?
- a)It provides oxygen to the drawing person
- b)It increases person volume to help him float
- c)It decreases person volume to help him float
- d)A person can sit on it
Correct answer is option 'B'. Can you explain this answer?
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What is the principle of Life-Jacket?a)It provides oxygen to the draw...
It increases person volume to help him float
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Life Jackets work on the principle of buoyancy, i.e., the amount of water displaced by an object is equal to its weight. This implies that when a person is in the water, the buoyancy force created is equal to the weight of the person.
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What is the principle of Life-Jacket?a)It provides oxygen to the draw...
Principle of Life-Jacket
The principle of a life jacket is to provide buoyancy to a person who is in the water, helping them to stay afloat and prevent drowning. The life jacket works on the principle of Archimedes' principle, which states that an object immersed in a fluid experiences an upward force equal to the weight of the displaced fluid.
Buoyancy
The life jacket is designed to increase the volume of a person, which in turn increases the amount of water displaced by the person's body. This creates an upward force, which helps the person float. The buoyancy of a life jacket depends on the amount of air trapped inside the jacket. The more air trapped inside, the more buoyant the life jacket.
Flotation
A life jacket is made of materials that are buoyant, such as foam or inflatable chambers. These materials are lightweight and can keep a person afloat even in rough waters. When a person is wearing a life jacket, they can float on their back, keeping their head above water and reducing the risk of drowning.
Safety
Life jackets are an essential safety tool for anyone who is boating, swimming, or engaging in water sports. They can save lives in case of an accident or emergency. It is important to wear a properly fitting life jacket and to make sure that it is in good condition and properly maintained.
Conclusion
In conclusion, the principle of a life jacket is to provide buoyancy to a person, increasing their volume and allowing them to float in water. This helps prevent drowning and is an essential safety tool for anyone engaging in water activities.
The principle of a life jacket is to provide buoyancy to a person who is in the water, helping them to stay afloat and prevent drowning. The life jacket works on the principle of Archimedes' principle, which states that an object immersed in a fluid experiences an upward force equal to the weight of the displaced fluid.
Buoyancy
The life jacket is designed to increase the volume of a person, which in turn increases the amount of water displaced by the person's body. This creates an upward force, which helps the person float. The buoyancy of a life jacket depends on the amount of air trapped inside the jacket. The more air trapped inside, the more buoyant the life jacket.
Flotation
A life jacket is made of materials that are buoyant, such as foam or inflatable chambers. These materials are lightweight and can keep a person afloat even in rough waters. When a person is wearing a life jacket, they can float on their back, keeping their head above water and reducing the risk of drowning.
Safety
Life jackets are an essential safety tool for anyone who is boating, swimming, or engaging in water sports. They can save lives in case of an accident or emergency. It is important to wear a properly fitting life jacket and to make sure that it is in good condition and properly maintained.
Conclusion
In conclusion, the principle of a life jacket is to provide buoyancy to a person, increasing their volume and allowing them to float in water. This helps prevent drowning and is an essential safety tool for anyone engaging in water activities.
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What is the principle of Life-Jacket?a)It provides oxygen to the drawing personb)It increases person volume to help him floatc)It decreases person volume to help him floatd)A person can sit on itCorrect answer is option 'B'. Can you explain this answer?
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