if I use this method and do an expeiment like this video, tell me at least three

Question

if I use this method and do an expeiment like this video, tell me at least three ways you might make better circular motion measurements. Please answer it as detaily as you can. Please type the answer rather than taking picture.

Circular Motion Theory: Velocity Uniform circular motion is the movement of an object with mass m along the circumference of a circle with radius r at a constant speed. The speed of the object may be described in two ways: Centripetal linear speed or tangential speed v - measured in [m/s], this is the familiar speed at which the object is travelling, were it travelling in a straight line. If, for example, the motion of the object were to be all-of-a-sudden unconstrained by the circle, the object would fly off in a straight line with this speed. angular speed (pronounced "omega")-measured in [radians/s] or [degrees/s], this is the rate at which the object sweeps through an angle per unit time. Notice that this value is independent of the size of the circle! Force Furthermore, the period T of the motion is the time it takes, in seconds, for the object to return to its starting position. The frequency f with which this occurs is defined as: If the angle is measured in radians, where 2 radians-360°, then: At T The tangential speed is related to the angular speed, period and radius through Due to the object's constantly changing linear direction, the object experiences a linear acceleration toward the center of the circle. The magnitude of this acceleration is 17 2

Explanation / Answer

for an experiment like that in the video to give good results
a. large value of R ( radisu of the circular motion) must be used, for reducing relative errors in the calculation of v and v^2/R ( centripital acceleration)
b. the pivot of the rotating frame has to be friciotnless
3. the experimetns have to be performed in a closed space with minimum air resistance disturbances
4. the linear speed v of the object should not be so largte that viscous dampoing of air effe4cts the results of the experiments
5. very largte numebr of obervations must be taken and average of reesults must be used

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