rotational_mechanics.gif (17954 bytes)

ROTATIONAL MOTION








EQUIPMENT
    redball.gif (326 bytes) Bicycle Wheel with Vector
    redball.gif (326 bytes) Length of String (3 times circumference)
   



NARRATIVE
         Transition from linear to angular measure is illustrated in the following way:

                    Wrap a length of string equal to 3 circumferences of the bicycle wheel around the rim of the wheel. Measure the length of the string and the number of revolutions of the wheel necessary to take up the string.

                    (Can be used for rolling wheel S = R * Theta)

                    Linear and angular velocity relationships may be investigated by unwinding the string at a certain linear velocity and interpreting this in rotational coordinates.