What would happen if something hit you at the speed of light?
It travels at a steady rate of 186,282 miles (299,792 kilometers) per second. Even if it were physically possible to propel ourselves to such speeds (spoiler alert: it isn’t), as you gain the necessary momentum to match the speed of light, your mass would become infinite.
What happens when you move close to the speed of light?
How is that possible? When a frame of reference goes very fast (close to the speed of light) relative to a rest frame, its time slows down as observed by someone in the rest frame. This relativistic effect is known as time dilation.
What would happen if a grain of sand hit Earth at light speed?
The likelyhood that a grain of sand, moving at or near the speed of light, would actually make it to the surface of the earth is so remote as to be ignored. A grain of sand moving at that speed, and hitting the atmosphere, would be destroyed before ever reaching the surface.
How fast can a feather fall?
d9.8 feet per second, squared Not Quite!
Why did the Feather Fall at the same rate as the hammer?
Because the Apollo crew were essentially in a vacuum, there was no air resistance and the feather fell at the same rate as the hammer. This is exactly what Galileo had concluded hundreds of years before: all objects released together fall at the same rate regardless of mass.
Why don’t Feathers float on the Earth?
On Earth, it doesn’t necessarily work this way. This is because the planet is enclosed in a bubble of gas — the atmosphere — which causes an effect called aerodynamic drag, particularly on objects that have a comparatively large surface area — such as feathers or fabric. It is caused by the pressure of a medium, such as air, on a solid object.
How much lighter is a Falcon feather than a hammer?
In his other, a 30g falcon feather, 44 times lighter than the hammer. Sure enough, when he dropped them both from the same height at the same time, they hit the ground simultaneously — thus demonstrating Galileo’s theory. On Earth, it doesn’t necessarily work this way.
How does air affect the speed of objects falling?
This air causes friction with objects as they fall through it, called air resistance, which can slow them down as they fall. Air resistance affects different shapes differently. Because the Apollo crew were essentially in a vacuum, there was no air resistance and the feather fell at the same rate as the hammer.