Khir Zulkifli's answer to LZmath's Secondary 3 E Maths Singapore question.
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Anti clockwise = Clock wise moment
12(0.3)= 1(0.2)+ 2(0.3)+W(0.7)
W(0.7)= 2.8
W= 4N
The pivot is at 30cm, hence perpendicular distance between pivot and force you have to minus 30cm. ie 50-30 and it’s in SI unit.
12(0.3)= 1(0.2)+ 2(0.3)+W(0.7)
W(0.7)= 2.8
W= 4N
The pivot is at 30cm, hence perpendicular distance between pivot and force you have to minus 30cm. ie 50-30 and it’s in SI unit.
Date Posted:
3 years ago
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