A horizontal uniform calibration beam, ABABAB, has a length of 8.0 metres and is balanced on a narrow support at its center point PPP. A precision weight of mass 9.45 kg is placed 1.6 metres to the left of PPP. A second weight of mass 4.2 kg is placed xxx metres to the right of PPP so that the beam remains in a state of horizontal equilibrium.
Find xxx.
Select your answer from the following choices:
3.2 m3.2\text{ m}3.2 m
3.4 m3.4\text{ m}3.4 m
3.6 m3.6\text{ m}3.6 m
3.8 m3.8\text{ m}3.8 m
Practise Edexcel A Level Maths Moments with exam-style questions for A Level Maths. 18 questions covering Moments, Resultant Moments, Equilibrium, Centres of Mass, and Tilting, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.