A metre rule is pivoted at the 50 cm mark. A weight of 2.0 N is hung at the 20 cm mark. At which mark must a weight of 3.0 N be hung to balance the rule?
The 30 cm mark
The 45 cm mark
The 65 cm mark
The 70 cm mark
40 exam-style questions on AQA GCSE Physics 5.4 Moments, levers and gears, covering 5.4 Moments, levers and gears. Each one has a worked solution and a mark scheme showing where the marks go.