PistonHeads.com Forum

Bending beams

Author
Discussion

mondeoman

Original Poster:

8,561 posts

173 months

Monday 1st October 2012
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Damn those forgotten O level physics equations ! smile

FarmyardPants

2,945 posts

125 months

Wednesday 3rd October 2012
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Yes it's all about acceleration as has been answered above. Given enough power, the guy could break the bar, assuming the guy has mass and the bar is not infinitely strong of course.

Reminds me of the age old puzzle of the lorry carrying a flock of birds crossing a bridge : the bridge weight limit is 10,000Kg, lorry weighs 9,990Kg, birds weigh 20Kg - how can the lorry cross the bridge safely? smile

FarmyardPants

2,945 posts

125 months

Wednesday 3rd October 2012
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I should add that the birds are not dead or flightless wink

annodomini2

5,298 posts

158 months

Wednesday 3rd October 2012
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Still doesn't decrease the weight of the vehicle, the air pressure from the birds wings is still pushing down on the load bed of the truck.

The only way is to take the birds out, drive the truck over, walk back and fetch the birds.

Besides Weight limit is not the breaking limit of the bridge.