PH-578
Moments
Physics · Secondary 3 · Medium · Moments
A 200 g mass is hung 25 cm from the pivot of a light metre rule. The rule balances horizontally when a 100 g mass is hung on the other side of the pivot.
How far from the pivot is the 100 g mass?
How far from the pivot is the 100 g mass?
- 50 cm
- 12.5 cm
- 25 cm
- 75 cm
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