JH's answer to Merlion's Secondary 1 Science Singapore question.

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JH
Jh's answer
3 answers (A Helpful Person)
1st
Mass is 10g. It should be the same mass/weight as the other block since they are of same distance from the centre. Clockwise moment caused by B is contracted by anticlockwise moment caused by A and hence the disk doesn't rotate.
Merlion
Merlion
4 years ago
Thanks
Merlion
Merlion
4 years ago
Thanks