Homework Help: Physical Science

Posted by Kristen on Tuesday, January 31, 2012 at 5:07pm.

The string of a certain yo-yo is 80 cm long and will break when the force on it is 10 N. What is the highest speed the 200 g yo-yo can have when it is being whirled in a circle? Ignore the gravitational pull of the earth on the yo-yo.

Physical Science - drwls, Tuesday, January 31, 2012 at 5:41pm
M V ^2/R = 10 N.

R = 0.8 m
M = 0.200 kg
Solve for V, in m/s.
Physical Science - Kristen, Tuesday, January 31, 2012 at 5:57pm
Okay, so would I solve it like:

v^2=.8/.200 ?

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