Can someone help me
A non-uniform beam PQ of length 4 m and weight 400 N is held horizontally by smooth supports at R and S where PR = SQ = 1 m. A boy of weight 500 N can just stand at end P without the beam overturning.
(i) Find the position of the centre of mass of the beam.
(ii) The boy walks towards Q. Find his distance from Q when the beam is about to tip.
Update: I worked it out
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Last edited by Lauryngarmun; 14-02-2018 at 00:50.
- 14-02-2018 00:23
- 14-02-2018 00:27
draw a diagram.