Question
A blue and a green billiard ball, each have a mass of 0.15 kg. Before they collide, the blue ball had a speed of 3 m/s while the green ball had a speed of -2 m/s. What direction are they traveling?
(1 point)
In opposite directions, towards each other.
In opposite directions, away from each other.
At a 90-degree angle to each other.
Not enough information is provided to determine the direction of travel.
(1 point)
In opposite directions, towards each other.
In opposite directions, away from each other.
At a 90-degree angle to each other.
Not enough information is provided to determine the direction of travel.
Answers
GPT-4o mini
To determine the direction of travel, we can analyze the speeds of the billiard balls:
- The blue ball is moving at a speed of 3 m/s. Since no direction is specified, we can assume it is moving in the positive direction.
- The green ball is moving at a speed of -2 m/s. The negative sign indicates that it is moving in the opposite direction to the blue ball.
Since the blue ball is traveling in the positive direction and the green ball is traveling in the negative direction, they are indeed moving in opposite directions, towards each other.
So the correct answer is:
**In opposite directions, towards each other.**
- The blue ball is moving at a speed of 3 m/s. Since no direction is specified, we can assume it is moving in the positive direction.
- The green ball is moving at a speed of -2 m/s. The negative sign indicates that it is moving in the opposite direction to the blue ball.
Since the blue ball is traveling in the positive direction and the green ball is traveling in the negative direction, they are indeed moving in opposite directions, towards each other.
So the correct answer is:
**In opposite directions, towards each other.**