Homework Help: Physics LAST QUESTION

Posted by arcos15 on Sunday, November 4, 2012 at 12:08am.

A beetle whose mass is 2 g sits on a turntable at a distance of 12 cm from the center. The turntable is rotating at 33 rpm.

(a) What are its acceleration and the centripetal force on it?

a =______ m/s2

Fc=_____ N

(b) What is the interaction that provides the centripetal force? Select all that apply.

-the gravitational force
-the force of friction
-the force of the beetle on the turntable
-the concentration of the mind of the beetle

Physics LAST QUESTION - drwls, Sunday, November 4, 2012 at 7:11am
At 33 rpm, the angular velocity is
w = 33*2*pi/60 = 3.46 rad/s

a = R*w^2, where R = 0.12 m
a = 1.43 m/s^2
Fc = M*a

Friction of the bug on the turntable provides the centripetalo force

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