- #1

- 2

- 0

## Homework Statement

The pendulum is swinging at an angle of 25.5 degrees (with respect to the vertical)

The mass of the object is 14.6 kg

Length of String is .5 m

Find the velocity (v = ?)

## Homework Equations

Centripetal Acceleration (ac) = v^2/r

Centripetal Force (Fc) = m*ac

## The Attempt at a Solution

I'm getting stuck at this problem after a certain point. I've found the radius of the circle using the right angle trig identities.

R = .215 m

I also know that the problem has to do with the sum of the forces of Fcp, Tension, and Force due to Gravity.

The y-component of the forces should be 0, so Fg (force of gravity) minus y component of Tension equals 0.

Therefore, I know that Fg = 143.08, and the y-component of Tension = 143.08.

However, I'm having trouble figuring out what to do for the x-component of the forces, so that I can use it to find the velocity.