- #1
msimard8
- 57
- 0
The Queston
To people are sweeping the floor using identicle brooms. They each clear off the same area and in the process, do the same amount of total work. One persons holds the handle at 15 degrees above the floor, while the other hodlds the handle at 35 degrees above the floor. Which person must use the laarger force to sweep the floor?
I am not quite sure how to attempt this. Ill explain some of my thought processes
Using the equation w=fdcos0, It tells that the 35 degrees broom has less force.
i figured that the person holding the broom at 35 degrees had to apply a less force because they are pulling the broom upward which may reduce friction. But how does this account for the gravity pulling the broom down.
If gravity was the factor, wouldn't the person holding the broom 15 degrees above the floor have it easier since they are not pulling against gravity.
I don't think thinking right. help
To people are sweeping the floor using identicle brooms. They each clear off the same area and in the process, do the same amount of total work. One persons holds the handle at 15 degrees above the floor, while the other hodlds the handle at 35 degrees above the floor. Which person must use the laarger force to sweep the floor?
I am not quite sure how to attempt this. Ill explain some of my thought processes
Using the equation w=fdcos0, It tells that the 35 degrees broom has less force.
i figured that the person holding the broom at 35 degrees had to apply a less force because they are pulling the broom upward which may reduce friction. But how does this account for the gravity pulling the broom down.
If gravity was the factor, wouldn't the person holding the broom 15 degrees above the floor have it easier since they are not pulling against gravity.
I don't think thinking right. help