Question

Eight objects are launched horizontally from the top ofa building. Some objects have mass m, the others have mass 2m. Some objects are launched with initial speed y, others with initial speed objects are launched from the middle of the building so that they have initial height H. the others are launched from the top of the building with initial height Object D Object A Object C Object B 2m 2H Object E Object F Object H Object G (a) Rank the objects based on the time that elapses while they are a projectile from longest to shortest amount of time. (if any objects have the same projectile time, put an equal sign between those letters.) Longest Projectle Time Least Projectile Time Briefly explain how you determined your ranking

Answer 1

To rank the objects based on their time in projectile motion, consider their initial height and speed. Objects with higher initial height spend more time in the air, while objects with higher initial speed spend less time in the air.

Step-by-step explanation:

To rank the objects based on the time that elapses while they are in projectile motion, we need to consider their initial height and initial speed. The time for projectile motion is determined by the vertical motion, so objects with a higher initial height will spend more time in the air. Additionally, objects with a higher initial speed will also spend less time in the air. Therefore, we can rank the objects from longest to shortest projectile time as follows:

1. Object E (2m mass, launched from the top of the building with initial height 2H and initial speed y)
2. Object A (m mass, launched from the middle of the building with initial height H and initial speed y)
3. Object C (2m mass, launched from the middle of the building with initial height H and initial speed y)
4. Object B (m mass, launched from the top of the building with initial height 2H and initial speed y)
5. Object F (m mass, launched from the middle of the building with initial height H and initial speed 2y)
6. Object H (m mass, launched from the top of the building with initial height 2H and initial speed 2y)
7. Object G (2m mass, launched from the top of the building with initial height 2H and initial speed 2y)