Universal gravitation

The acceleration of gravity on the Earth is 9.80665 m·s^-2.

We consider an object falling toward the Earth. At the beginning of its fall, its speed was 0 m·s^-1.

Determinate its speed :

• 1 second later
• 2 seconds later
• 5 seconds later
• 23 seconds later
• 1 year later
• 36,524,552 years later (that object falls for a very long time...)