- #1
GandhiReborn
- 11
- 0
Homework Statement
A particle of mass 15g is attached to the end of a string of length 50cm, rotating at 6rads-1 to form a conical pendulum.
Find a) The tension in the string
Find b) The angle
2. The attempt at a solution
Okay I get that Tcosθ= mg
& TSinθ= mv^2/r
which => tanθ= v^2/rg
and I get why, but I don't understand how to find tension... I'm really blooming confused and have been banging my head for over two hours now.
I also know I need to find r using the length of the string and the angular velocity, I just don't get how.
Basically, I need r to find both and I can't work out how to get r? Please, someone help me??
Thanks!