Yoann said:If there is an object with a density of 0.3 gm/cu.cm in water, how long will it take to go back up to the surface if it was 10 meters deep in the beginning? Or another question would simply be, what would be the object's upward speed in the water? Is it possible to calculate this?
Assuming it is pure water at 4°C so its density is 1 g/cu.cm
Thanks!
The upward speed of an object in water is affected by several factors, including the density and viscosity of the water, the shape and size of the object, and the force being applied to the object.
The upward speed of an object in water can be calculated using the equation v = Fnet/m, where v is the upward speed, Fnet is the net force on the object, and m is the mass of the object. This equation takes into account the force applied to the object and its mass, both of which affect the object's upward speed.
The upward speed of an object in water is directly proportional to its weight. This means that as the weight of the object increases, its upward speed also increases, assuming all other factors remain constant.
Yes, an object can have a negative upward speed in water. This means that the object is sinking rather than rising. This can occur if the force applied to the object is not enough to overcome the weight of the object, causing it to sink.
The shape of an object can greatly affect its upward speed in water. Objects with a streamlined shape, such as a torpedo, will experience less drag and therefore have a higher upward speed compared to objects with a more irregular shape. This is because the streamlined shape allows the water to flow smoothly around the object, reducing the drag force acting on it.