A parachute slows down the rate of descent during freefall by increasing air resistance. As the parachute opens, it creates a larger surface area for air to push against, which slows down the body's descent.
The size and shape of the parachute, the weight and shape of the object being dropped, and the air density and wind conditions all play a role in the effectiveness of a parachute during freefall. A larger and more aerodynamic parachute will provide more air resistance and slow down the descent more effectively.
Yes, a parachute can completely stop a freefall if it is properly designed and deployed at the right time. However, this is not always the goal as a controlled descent is often preferred for safety reasons.
The higher the altitude, the thinner the air and the lower the air resistance. This means that a parachute will have less air to push against and will not be as effective in slowing down the descent. It is important to consider the altitude when choosing the right size and shape of a parachute for a specific freefall.
If a parachute fails to open or deploy properly during freefall, the person or object will continue to fall at a high rate of speed and potentially sustain serious injuries upon impact with the ground. This is why it is important to have backup parachutes and proper training for emergency situations.