In the experiment, we used an apparatus that had a shaft that could be rotated w
ID: 2010226 • Letter: I
Question
In the experiment, we used an apparatus that had a shaft that could be rotated with a bob attached. The bob was connected by a string and a spring to the shaft. The shaft was rotated so that the bob would be moving at a fixed distance away from the shaft. This fixed distance was equivalent to the radius of the circular path of motion. The time that it took for the bob to pass the needle (in other words, one full revolution) 50 times was recorded. This time, after being adjusted to account for only one revolution, along with the fixed distance (radius), was used to calculate the centripetal force on the bob. In the next portion of the experiment, more mass is added to on the bob keeping a fixed radius. I happen to find different results putting to different masses on the mob.
Q. Does the "centripetal" force change as the mass of the bob changed? Explain why or why not.
Explanation / Answer
no the centripetal force on the bob does not change it can only change when the spring extends as the radius is fixed the force the spring exerts does not change then what else would change if the mass is changes the time of revolution increases as the mass increases hence will give different results.