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secondary 3 | E Maths
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Alyssa Lim Siow Teng
Alyssa Lim Siow Teng

secondary 3 chevron_right E Maths chevron_right Singapore

Please help :) Thank you

Date Posted: 5 years ago
Views: 240
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snell
Snell
5 years ago
30-N force provides an anti-clockwise moment of 30x0.70 = 21 N m

100-N force provides a clockwise moment of 100x0.20 = 20 N m

Resultant moment = 21-20
= 1 N m

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CheesePrata
Cheeseprata's answer
25 answers (A Helpful Person)
1st
Take moment about the pivot in the clockwise and anti clockwise directions. The sum between them is the resultant moment. Moment is a vector, so direction matters.