|
|
|
We study the oscillations of the 200 gram mass in slow motion.
The video is 10 times slower than in reality.
We measure the time for 10 cycles of the oscillatory movements.
The time this takes equals 100×T.
We start counting the time at the instant that for the first time the mass is in its lowest position: t=25 s. We determine the completion of 10 cycles at t=92 s. The error in 100×T is in the order of 2 seconds, 1 second accuracy for the initial instant and 1 second accuracy for the final instant. |