Question
What happens when a penny is dropped from a height of 20 meters?
Question 4 options:
The force of gravity causes it to accelerate.
Its mass doubles for every second it falls.
It changes direction every 9.8 meters.
It falls at a constant velocit
Question 4 options:
The force of gravity causes it to accelerate.
Its mass doubles for every second it falls.
It changes direction every 9.8 meters.
It falls at a constant velocit
Answers
GPT-4o mini
When a penny is dropped from a height of 20 meters, the correct answer among the given options is:
**The force of gravity causes it to accelerate.**
This is because, in free fall, the penny will accelerate downwards at approximately 9.8 meters per second squared due to the force of gravity. The other options are incorrect:
- The mass of the penny does not change as it falls; it remains constant.
- An object in free fall does not change direction every 9.8 meters; it continues to fall straight down.
- It does not fall at a constant velocity; instead, it accelerates until it reaches terminal velocity (which is not typically reached in a 20-meter drop for a penny).
**The force of gravity causes it to accelerate.**
This is because, in free fall, the penny will accelerate downwards at approximately 9.8 meters per second squared due to the force of gravity. The other options are incorrect:
- The mass of the penny does not change as it falls; it remains constant.
- An object in free fall does not change direction every 9.8 meters; it continues to fall straight down.
- It does not fall at a constant velocity; instead, it accelerates until it reaches terminal velocity (which is not typically reached in a 20-meter drop for a penny).