# Lab 6 - Lab 6 Objective: In this experiment, Newton's 2nd...

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Lab 6 Objective: In this experiment, Newton’s 2 nd law of motion is tested in rotational motion with a centripetal force. Description: The set up will allow for a hanging mass to rotate around in a circular motion. The hanging mass M1 will be hung by a radial arm with a spring on the side of the mass that is attached to the central shaft. Measuring the centripetal force is done by attaching a string to the hanging mass and putting it over the pulley until M1 is in line with a pointer on the central shaft system. M2 is the variable weight responsible for M1 being put into the proper position and the centripetal force with g, the acceleration due to gravity, will be M1g. The picture below shows the system. Theory: In rotational motion, the angular velocity is measured as omega, ω, which is measured in radians per second. Omega, ω, will be constant since there is no acceleration in the system. The frequency, f, is the rotation rate which is measured in the number of rotations per second. The f unit is hertz (Hz). The equation ω=2πf relates ω to f. The period t, is the

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## This note was uploaded on 04/17/2008 for the course PHYS V85.0011 taught by Professor Adler during the Fall '08 term at NYU.

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Lab 6 - Lab 6 Objective: In this experiment, Newton's 2nd...

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