Predict the motion of the parachute humans after you throw them up. Describe the speed and acceleration of the human as it goes up, falls back down, and after the parachute opens. written as a 8th grader
When you throw a parachute into the air, the motion of the humans is quite interesting. Firstly, as you throw the parachute up, the humans will experience an upward motion. Their speed gradually decreases as they move higher into the air. This is because gravity is acting against their motion and slowing them down.
Once the humans reach their highest point in the air, they start to fall back down towards the ground. At this point, their speed increases gradually as the force of gravity pulls them downward. They will start to fall faster and faster until they reach their maximum speed, known as the terminal velocity.
When the parachute opens, it significantly affects the motion of the humans in a positive way. The opening of the parachute creates a huge amount of air resistance against the downward force of gravity. This results in the humans slowing down and their speed decreasing rapidly. The parachute allows them to descend safely and slowly.
During this phase, the acceleration of the humans changes. Initially, they were accelerating downwards due to gravity. However, after the parachute opens, their acceleration decreases significantly as the air resistance counteracts the force of gravity. Eventually, their acceleration becomes zero once they reach a constant speed, which is much slower than when they were free-falling.
Overall, the motion of the parachute humans involves a decrease in speed as they are thrown up, an increase in speed as they fall down, and a rapid decrease in speed after the parachute opens. The change in acceleration is also significant throughout these different phases.