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# M2 moments question not clear (to me) watch

1. 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.

where it says "A boy of weight 500 N can
just stand at end P without the beam overturning." am i supposed to assume the beam is on the point of tilting?
2. (Original post by joyoustele)
where it says "A boy of weight 500 N can
just stand at end P without the beam overturning." am i supposed to assume the beam is on the point of tilting?
Yes that's right.
3. (Original post by Notnek)
Yes that's right.
Okay. Thanks.

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