Physics LAST QUESTION
posted by arcos15 on .
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

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