A uniform plank $AB\,$ has length 5 m and mass 8 kg. The plank rests horizontally on two supports $M\,$ and $N$ , where $A M = 0.5$ m and $A N = 4$ m.

Find the magnitude of the reactions of the support at $M\,$ and $N$ .

A block is now placed at $B\,$ and the plank is on the point of tilting about $N$ . Find the weight of the block.

Find the magnitude of the reaction at $N$ .

A uniform plank $AB\,$ has length 5 m and mass 8 kg. The plank rests horizontally on two supports $M\,$ and $N$ , where $A M = 0.5$ m and $A N = 4$ m.

Find the magnitude of the reactions of the support at $M\,$ and $N$ .

A block is now placed at $B\,$ and the plank is on the point of tilting about $N$ . Find the weight of the block.

Find the magnitude of the reaction at $N$ .

3 Mechanics

Question 77

Markscheme

3 Mechanics

Question 77

Markscheme

3 Mechanics

Question 77

3 Mechanics Questions

3 Mechanics

Question 77

3 Mechanics Questions