Effect of Object's Weight on Its Terminal Velocity as it is Falling

Effect of object weight on drop velocity === The purpose is to examine the effect of object weight on falling speed. Prediction ========== I predict that the terminal speed will rise as the weight of falling objects increases. This is because adding the weight of the object increases the downward force. In order for an object to move at a constant speed, that is to say at a terminal speed, other forces must match the downward force.

The dropped bullet receives downward force of its own weight and upward air resistance. As the speed increases, as a result of air resistance, the falling object reaches the maximum speed called the final speed. It is determined by its weight and shape (this is why you can jump out of the plane with a parachute). The terminal speed of a 30 caliber bullet with a weight of about 10 grams is about 90 meters per second (about 200 miles per hour) and the end of a bullet with a weight of about 42 grams is about 150 meters per second About 335 miles). Bullets moving at 60 meters per second (about 130 miles per hour) can penetrate the skull, Yes, the bullet that falls is dangerous. Dozens of people are killing each year to celebrate shooting

During free fall, when the falling body experiences zero acceleration, that is, when there is no acceleration in the parachute, the terminal speed will be generated. It depends directly on the ratio of resistance to weight. When the gravity acting on the object is equal to the air resistance of the object or the viscous force of the air, the terminal speed is reached. Air resistance is the main factor that an object falls to the final speed because it may cause the object to fall easily.

Resistance depends on the square of speed. As a result, the body accelerates speed and resistance. It will quickly reach the point where the resistance equals the weight exactly. When the resistance is equal to the weight, the object has no net external force and the acceleration is zero. The object falls at a constant speed, as described by Newton's first kinetic law. Terminal speed

Near the surface of the earth free falling objects accelerate at a speed of about 8 m / s 2 regardless of mass. When acting on an object with lowered air resistance, the object eventually reaches a final speed of about 53 meters per hour (195 kilometers per hour, or 122 miles per hour) in the case of a human skydiver. The speed of the terminal depends on various factors that can be achieved only when the falling distance is long enough, such as mass, drag coefficient and relative surface area. A typical skydiver that extends the eagle's position will reach its end speed in about 12 seconds. Meanwhile, he falls about 1,400 meters (1,500 feet).