an object mass of .5kb revovles uniformly in cirlce horizontal frictionless surface. it is attached by .75 m cord to pin set in surface. if object makes 2 complete revolujtions per second, find its speed and its centripetal force(adsbygoogle = window.adsbygoogle || []).push({});

mg = m(v2/r)

gr = v2

v = sq root of gr

v = sq root of 9.8*.75

v = 2.7 m/s2

anyone wanna do me a favor, and check if i'm doing' this right,

thanks a lot..

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

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!

# Speed and its centripetal force of circling object

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