Question

A child is sledding. He starts at the top of the hill with a velocity of zero, and 3 seconds later he is speeding down the hill at 12 meters per second. What is the child's acceleration?

Answer 1

Magnitude of acceleration = (change of speed) / (time for the change) =

(12 m/s - 0) / (3 sec) =

12/3 = 4 m/s²

What's a challenge question ? Have we all passed the event horizon
and been spaghettified without knowing it ?