what is net force acting on the ball after attaning terminal velosity?
Zero.
If there were any net force, there would be acceleration, but the velocity is not changing.
0m/s
zero
To determine the net force acting on a ball after attaining terminal velocity, we need to understand two concepts: terminal velocity and the forces acting on the ball.
1. Terminal velocity: Terminal velocity is the maximum velocity that an object can achieve while falling through a fluid (like air) due to gravity. At terminal velocity, the net force acting on the object becomes zero, and the object falls at a constant velocity without accelerating further.
2. Forces acting on the ball: There are typically two main forces acting on a ball falling through the air: gravity and air resistance (also called drag force).
- Gravity: This force is always acting on the ball, pulling it downward toward the Earth. The force of gravity can be calculated using the equation Fg = m * g, where Fg is the force of gravity, m is the mass of the ball, and g is the acceleration due to gravity (approximately 9.8 m/s²).
- Air resistance (Drag force): Air resistance opposes the motion of the falling ball and increases with the speed of the object. As the ball accelerates downwards, the drag force also increases until it becomes equal in magnitude to the force of gravity. At this point, the net force becomes zero, and the ball reaches terminal velocity.
Therefore, the net force acting on the ball after attaining terminal velocity is zero. The force of gravity and the drag force (air resistance) balance each other out, resulting in no acceleration or change in velocity.