A person standing in the cabin of a jet plane drops a coin. This coin hits the floor of the cabin at a point directly below where it was dropped (as seen in the cabin) no matter how fast the plane is moving.

Question

Quizplus · Accepted Answer

Both the coin and the plane (including its cabin) are moving at the same velocity. When the coin is dropped, it retains the forward velocity of the plane, ensuring it falls straight down relative to the cabin.

A Person Standing in the Cabin of a Jet Plane