- #1
physics10
- 4
- 0
I am really in a jam, I have no idea if I solved this correctly or not, it is due Monday morning 8:00am /eastern time.
Here is the question:
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 28m/s, the block hangs vertically down. But when the van maintains the same speed around an unbanked curve (radius=150m), the block swings toward the outside of the curve. Then the string makes an theta with the vertical. Find theta.
This is what I got, I don't know if I am doing it correctly or not.
The sum of Fy=0
ncos theta=mg
theta=tan^-1 (28m/s)^2/(150m)*(9.80m/s)= theta=28 degrees
Please help if you can, you can e-mail me if you like at jc_ro2003@yahoo.com
Here is the question:
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 28m/s, the block hangs vertically down. But when the van maintains the same speed around an unbanked curve (radius=150m), the block swings toward the outside of the curve. Then the string makes an theta with the vertical. Find theta.
This is what I got, I don't know if I am doing it correctly or not.
The sum of Fy=0
ncos theta=mg
theta=tan^-1 (28m/s)^2/(150m)*(9.80m/s)= theta=28 degrees
Please help if you can, you can e-mail me if you like at jc_ro2003@yahoo.com