whn a body hanging frm a spring balance is immersed in water it floats in water just below the surface of water & shows 100g loss in its weight
1-wht is thw weight of body in water?
2-wht is thw weight of body in air
3-wht is upthrust on the body?
4-wht is the vol. of body?
given-acc. due to gravity=10m/s,vol. of 1gm of water=1mL
Please help me to answer these questions
all question
To solve these questions, we need to understand the concept of buoyancy and how it affects the weight of an object when submerged in a fluid. Here's how we can find the answers to each question:
1. To find the weight of the body in water, we need to calculate the buoyant force acting on it. The buoyant force is equal to the weight of the fluid displaced by the body. So, the weight of the body in water is equal to its actual weight minus the buoyant force. In this case, since the body floats just below the surface of the water, it displaces an amount of water equal to its own weight. Therefore, the weight of the body in water is 100g less than its actual weight.
2. The weight of the body in air is equal to its actual weight. It is unaffected by the presence of water.
3. The upthrust (or buoyant force) on the body is equal to the weight of the water displaced by the body. In this case, since the body displaces an amount of water equal to its own weight, the upthrust is equal to the weight of the body in water.
4. The volume of the body can be found by using the given information that the volume of 1 gram of water is 1 mL. Since the body loses 100g in weight when submerged in water, the volume of water displaced by the body is 100 mL. As the body displaces an equal volume of water, the volume of the body is also 100 mL.
Please note that the given information does not include the density or any other specific characteristics of the body. Therefore, we cannot determine the exact nature or composition of the body.