![]() ![]() Okay so we know the formula that the density of water is what mars divided by volume. Yeah and here I am is what our master raindrop. Okay so here we know that sees what our drag coefficient. Okay so we equal to we know the formula understood to multiply by m multiplied by G divided by down the density of air, multiplied by psi multiplied by a F. ![]() Falling from the height Okay means well what is terminal velocity means? After that after that point the velocity remains constant. So in this when this raindrop is falling it achieved a terminal velocity. It's like a friction in a vertical direction. So the resisting force acting towards the upper direction. So suppose this is our raindrop that is falling with the height 4.81 km. Okay, so first we have to understand what is the meaning of address. So this will be our velocity then there is no air. So converting two m is equal to what that is 300 six point double it meter per second. Okay, So putting the value there is to multiply by 9.81 we know the value of edge, that is 4.81 multiply bartenders to three that is citizen kilometers. So the for the first question velocity in the absence of so formula basically what that is physical to under root of two G h. So first we have to calculate the velocity in the absence of and so forth. Okay, also we have given the surface area of the raindrop that is af also the drag conference sent c is equal to one. Also we have given the density of air, there is 1.18 kg middle middle cubes, so we have to calculate the velocity first in the absence of air, then we don't have to consider the air drag. So in the question we have to find the velocity of spherical raindrop that would achieve a falling and we have to consider the polling as a positive direction From the height of 4.8 km 4.8 km in the following situation and we have given the height of That means we have given the diameter that is 3.8 mm of this drop. (a) What is the coefficient of static friction? (b) What is the maximum force that can be applied upward along the plane on the rope and not move the block? (c) With a slightly greater applied force, the block will slide up the plane.Hello ribbon. The coefficient of friction is 80% of that for the static case. In its present state, the crate is just ready to slip and start to move down the plane. A massless rope to which a force can be applied parallel to the surface is attached to the crate and leads to the top of the incline. At this point, the person’s velocity remains constant and we say that the person has reached his terminal velocity ( with the horizontal. A zero net force means that there is no acceleration, as shown by Newton’s second law. However, as the person’s velocity increases, the magnitude of the drag force increases until the magnitude of the drag force is equal to the gravitational force, thus producing a net force of zero. The downward force of gravity remains constant regardless of the velocity at which the person is moving. The two forces acting on him are the force of gravity and the drag force (ignoring the small buoyant force). For instance, consider a skydiver falling through air under the influence of gravity. Some interesting situations connected to Newton’s second law occur when considering the effects of drag forces upon a moving object. One consequence is that careful and precise guidelines must be continuously developed to maintain the integrity of the sport. ![]() Such innovations can have the effect of slicing away milliseconds in a race, sometimes making the difference between a gold and a silver medal. Most elite swimmers (and cyclists) shave their body hair. Many swimmers in the 2008 Beijing Olympics wore (Speedo) body suits it might have made a difference in breaking many world records ( (Figure)). #CALCULATE THE VELOCITY OF A SPHERICAL RAINDROP FULL#Australian Cathy Freeman wore a full body suit in the 2000 Sydney Olympics and won a gold medal in the 400-m race. Bicycle racers and some swimmers and runners wear full bodysuits. ![]() The dimples on golf balls are being redesigned, as are the clothes that athletes wear. Substantial research is under way in the sporting world to minimize drag. Typical Values of Drag Coefficient C Object For this reason, during the 1970s oil crisis in the United States, maximum speeds on highways were set at about 90 km/h (55 mi/h). The most fuel-efficient cruising speed is about 70–80 km/h (about 45–50 mi/h). At highway speeds, over 50% of the power of a car is used to overcome air drag. Notice that the drag coefficient is a dimensionless quantity. (Figure) lists some typical drag coefficients for a variety of objects. The drag coefficient can depend upon velocity, but we assume that it is a constant here. ![]()
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