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nothingislost
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A carousel going counter clockwise starts from rest and accelerates at a constant angular acceleration of 0.02 rev/s^2. A girl sitting on a bench on the platform 7 m from the center is holding a 3kg ball. Calculate the magnitude and the direction of the force she must exert to hold the ball 6s after the carousel starts to move. Give the direction with respect to the line from the center of rotation to the girl.
So the moving carousel simply creates an effective force on the ball opposite its rotation. I think the only force is mw^2r, where m is the mass on the ball w is the angular velocity and r is distance from the center of rotation to the girl. Is this right? the direction of the force the girl puts on the ball is opposite the natural force and tangent the the motion. I am getting .3024 N but this seems very small.
thanks
So the moving carousel simply creates an effective force on the ball opposite its rotation. I think the only force is mw^2r, where m is the mass on the ball w is the angular velocity and r is distance from the center of rotation to the girl. Is this right? the direction of the force the girl puts on the ball is opposite the natural force and tangent the the motion. I am getting .3024 N but this seems very small.
thanks
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