GCSE Physics

Unbalanced Moments!

Sometimes moments can easily become unbalanced - even when we don't want them to!

donkey and cart unbalanced due to an error of moments!
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  lorry crane failure when trying to offload bricks and sand
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In these unfortuante examples, it would seem that in loading the cart, some of the boxes must have slipped to the back - further away from the pivot - greatly increasing their turning effect. In the case of the lorry, its weight wasn't enough to balance the heavy bricks.

The result was the lifting of the donkey - who must have been very surprised! For the lorry, it was lucky nobody was hurt.

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