Even though skydivers plummet towards the earth at a speed of about 200 km/hr, video footage ofskydivers makes it appear as if they’re not really moving at all. Why is this?
Question
Even though skydivers plummet towards the earth at a speed of about 200 km/hr, video footage ofskydivers makes it appear as if they’re not really moving at all. Why is this?
Solution
This phenomenon can be explained by the concept of relative motion. When skydivers jump from an airplane, they are initially moving at the same speed as the airplane. As they fall, they continue to move forward as well as downward, which is why they land far from the point directly below where they jumped.
When a video is taken of skydivers, the camera is usually also falling at the same speed. Because both the camera and the skydivers are moving together, it appears as if the skydivers are not moving at all. This is similar to how you don't feel like you're moving when you're in a car going at a constant speed - everything inside the car is moving at the same speed as you, so it doesn't feel like you're moving.
In addition, the skydivers are far away from the ground and any other reference points that could provide a sense of scale or speed. This makes it difficult to perceive their high speed. If you were to watch a skydiver pass by from a stationary point on the ground, they would appear to be moving very quickly.
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