Title and author:
Turning effects on a Pulley by Ropes with Masses attached
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Fu-Kwun Hwang; Fremont Teng; Loo Kang Wee
© 2020, Fu-Kwun Hwang; Fremont Teng; Loo Kang Wee. Compiled with EJS 6.0 (191124)
Released under a 
license.
license.