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10 Nov 2019
A 4.20 kg counterweight is attached to a light cord, which is woundaround a spool. The spool is a uniform solid cylinder of radius7.00 cm and mass 2.00 kg.
(b) When the counterweight has a speed v, the pulley has an angularspeed ? = v/R. Determine the total angular momentum of the systemabout O.
multiplied by v kg·m2/s
(c) Using the fact that tau vec = dLvec/dt and your result from(b), calculate the acceleration of the counterweight.
4 m/s2
A 4.20 kg counterweight is attached to a light cord, which is woundaround a spool. The spool is a uniform solid cylinder of radius7.00 cm and mass 2.00 kg.
(b) When the counterweight has a speed v, the pulley has an angularspeed ? = v/R. Determine the total angular momentum of the systemabout O.
multiplied by v kg·m2/s
(c) Using the fact that tau vec = dLvec/dt and your result from(b), calculate the acceleration of the counterweight.
4 m/s2
Bunny GreenfelderLv2
2 Sep 2019
