- #1
fa08ti
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Keys with a combined mass of 0.100 kg are attached to a 0.25m long string and swung in a circle in the vertical plane.
a) What is the slowest speed that the keys can swing and still maintain a circular path?
b) What is the tension in the string at the bottom of the circle?
for part a, I used g= v^2/r and rearranged it to v=sqrt(gr)
I got v=2.5 m/s
I'm pretty sure that's right
I think i'd have to use the same equation for the part b?
I'm just stuck on the radius thing for part b
any ideas would be great
a) What is the slowest speed that the keys can swing and still maintain a circular path?
b) What is the tension in the string at the bottom of the circle?
for part a, I used g= v^2/r and rearranged it to v=sqrt(gr)
I got v=2.5 m/s
I'm pretty sure that's right
I think i'd have to use the same equation for the part b?
I'm just stuck on the radius thing for part b
any ideas would be great