C The Figure Below Shows The Apparatus You Used In Lab 2 A Disc Of Radius R 0 114 M A Shaft Of Radius R 0 0126 M A 1 (52.5 KiB) Viewed 48 times
C The Figure Below Shows The Apparatus You Used In Lab 2 A Disc Of Radius R 0 114 M A Shaft Of Radius R 0 0126 M A 2 (9.54 KiB) Viewed 48 times
(c) The figure below shows the apparatus you used in Lab 2: a disc of radius R = 0.114 m, a shaft of radius r=0.0126 m and a mass m = 20 g. A string is wrapped around the shaft and tied to the mass m at the other end. The mass m = 20 g is dropped from rest for a height of 0.714 m from the floor to rotate the shaft and the disc. It takes 22.3 s for the mass to drop on to the floor for the height of 0.714 m. The mass of the shaft is considered negligible. A m (i) Determine the angular acceleration of the disc when the mass m is dropping. T
(ii) Calculate the centripetal acceleration at point A of the disc just before the mass hits the floor.
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