A paratrooper uses a parachute to descend slowly after jumping from a height because it helps to slow down their fall and reduce the impact of landing. When a person jumps from a height, they accelerate towards the ground due to the force of gravity. The parachute helps to counteract this force by creating air resistance, which slows down the person's fall. As the parachute opens, it creates a large surface area that catches the air and creates drag. This slows down the person's descent and allows them to land more safely and gently. Without a parachute, the person would hit the ground at a very high speed, which could cause serious injury or even death.
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Answer:
A paratrooper uses a parachute to descend slowly after jumping from a height because it helps to slow down their fall and reduce the impact of landing. When a person jumps from a height, they accelerate towards the ground due to the force of gravity. The parachute helps to counteract this force by creating air resistance, which slows down the person's fall. As the parachute opens, it creates a large surface area that catches the air and creates drag. This slows down the person's descent and allows them to land more safely and gently. Without a parachute, the person would hit the ground at a very high speed, which could cause serious injury or even death.