A technician uses a straight lever handle to rotate the shaft of an industrial clamp. The clamp releases only when the moment about the shaft is at least 36 Nm.
The handle extends 0.24 m from the shaft. The technician can exert a maximum force of 120 N at right angles to the end of the handle.
Calculate the minimum extra length that must be added to the handle so that the technician can release the clamp.
124 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.