Hi, I got this question wrong on a test and am really quite lost about it. I'd appreciate somebody running me through it.(adsbygoogle = window.adsbygoogle || []).push({});

---

"Suppose a 55 kg person stands at the edge of a 6.5 m diameter merry go round turntable that is mounted on a frictionless bearing and has a moment of inertia of 1700 kg m^2. The turntable is at rest initially, but when the person begins running at a speed of 3.8 m/s (with respect to the turntable) around its edge, the turntable begins to rotate in the opposite direction. Caculate the angular velocity of the table."

---

So I set up conservation of angular momentum

L_f = L_i

and

(Iw)_f = (Iw)_i

Can somebody please help me from there?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Angular momentum of merry go round turntable

**Physics Forums | Science Articles, Homework Help, Discussion**